Voltage-Dependent Anion Channel 1: Voltage-dependent anion channel 1 is the major pore-forming protein of the mitochondrial outer membrane. It also functions as a ferricyanide reductase in the PLASMA MEMBRANE.Voltage-Dependent Anion Channels: A family of voltage-gated eukaryotic porins that form aqueous channels. They play an essential role in mitochondrial CELL MEMBRANE PERMEABILITY, are often regulated by BCL-2 PROTO-ONCOGENE PROTEINS, and have been implicated in APOPTOSIS.Anions: Negatively charged atoms, radicals or groups of atoms which travel to the anode or positive pole during electrolysis.Ion Channels: Gated, ion-selective glycoproteins that traverse membranes. The stimulus for ION CHANNEL GATING can be due to a variety of stimuli such as LIGANDS, a TRANSMEMBRANE POTENTIAL DIFFERENCE, mechanical deformation or through INTRACELLULAR SIGNALING PEPTIDES AND PROTEINS.Ion Channel Gating: The opening and closing of ion channels due to a stimulus. The stimulus can be a change in membrane potential (voltage-gated), drugs or chemical transmitters (ligand-gated), or a mechanical deformation. Gating is thought to involve conformational changes of the ion channel which alters selective permeability.Calcium Channels: Voltage-dependent cell membrane glycoproteins selectively permeable to calcium ions. They are categorized as L-, T-, N-, P-, Q-, and R-types based on the activation and inactivation kinetics, ion specificity, and sensitivity to drugs and toxins. The L- and T-types are present throughout the cardiovascular and central nervous systems and the N-, P-, Q-, & R-types are located in neuronal tissue.Membrane Potentials: The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization).Chloride Channels: Cell membrane glycoproteins that form channels to selectively pass chloride ions. Nonselective blockers include FENAMATES; ETHACRYNIC ACID; and TAMOXIFEN.Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization: A mass spectrometric technique that is used for the analysis of large biomolecules. Analyte molecules are embedded in an excess matrix of small organic molecules that show a high resonant absorption at the laser wavelength used. The matrix absorbs the laser energy, thus inducing a soft disintegration of the sample-matrix mixture into free (gas phase) matrix and analyte molecules and molecular ions. In general, only molecular ions of the analyte molecules are produced, and almost no fragmentation occurs. This makes the method well suited for molecular weight determinations and mixture analysis.Animal Welfare: The protection of animals in laboratories or other specific environments by promoting their health through better nutrition, housing, and care.Abattoirs: Places where animals are slaughtered and dressed for market.Chickens: Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA.Proteomics: The systematic study of the complete complement of proteins (PROTEOME) of organisms.Voltage-Dependent Anion Channel 2: Voltage-dependent anion channel 2 is a low abundance mammalian isoform of VDAC that interacts with the inactive form of BAK PROTEIN.Ryanodine Receptor Calcium Release Channel: A tetrameric calcium release channel in the SARCOPLASMIC RETICULUM membrane of SMOOTH MUSCLE CELLS, acting oppositely to SARCOPLASMIC RETICULUM CALCIUM-TRANSPORTING ATPASES. It is important in skeletal and cardiac excitation-contraction coupling and studied by using RYANODINE. Abnormalities are implicated in CARDIAC ARRHYTHMIAS and MUSCULAR DISEASES.Ryanodine: A methylpyrrole-carboxylate from RYANIA that disrupts the RYANODINE RECEPTOR CALCIUM RELEASE CHANNEL to modify CALCIUM release from SARCOPLASMIC RETICULUM resulting in alteration of MUSCLE CONTRACTION. It was previously used in INSECTICIDES. It is used experimentally in conjunction with THAPSIGARGIN and other inhibitors of CALCIUM ATPASE uptake of calcium into SARCOPLASMIC RETICULUM.Porins: Porins are protein molecules that were originally found in the outer membrane of GRAM-NEGATIVE BACTERIA and that form multi-meric channels for the passive DIFFUSION of WATER; IONS; or other small molecules. Porins are present in bacterial CELL WALLS, as well as in plant, fungal, mammalian and other vertebrate CELL MEMBRANES and MITOCHONDRIAL MEMBRANES.Calcium: A basic element found in nearly all organized tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.Mitochondrial Membranes: The two lipoprotein layers in the MITOCHONDRION. The outer membrane encloses the entire mitochondrion and contains channels with TRANSPORT PROTEINS to move molecules and ions in and out of the organelle. The inner membrane folds into cristae and contains many ENZYMES important to cell METABOLISM and energy production (MITOCHONDRIAL ATP SYNTHASE).Cell Membrane Permeability: A quality of cell membranes which permits the passage of solvents and solutes into and out of cells.Bacterial Outer Membrane Proteins: Proteins isolated from the outer membrane of Gram-negative bacteria.Bivalvia: A class in the phylum MOLLUSCA comprised of mussels; clams; OYSTERS; COCKLES; and SCALLOPS. They are characterized by a bilaterally symmetrical hinged shell and a muscular foot used for burrowing and anchoring.Gills: Paired respiratory organs of fishes and some amphibians that are analogous to lungs. They are richly supplied with blood vessels by which oxygen and carbon dioxide are exchanged directly with the environment.Mytilidae: A family of marine MUSSELS in the class BIVALVIA.Proteome: The protein complement of an organism coded for by its genome.Corticotrophs: Anterior pituitary cells that produce ADRENOCORTICOTROPHIC HORMONE.Electrophoresis, Gel, Two-Dimensional: Electrophoresis in which a second perpendicular electrophoretic transport is performed on the separate components resulting from the first electrophoresis. This technique is usually performed on polyacrylamide gels.Research: Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)Research Personnel: Those individuals engaged in research.Research Support as Topic: Financial support of research activities.Biomedical Research: Research that involves the application of the natural sciences, especially biology and physiology, to medicine.Social Behavior: Any behavior caused by or affecting another individual, usually of the same species.Research Design: A plan for collecting and utilizing data so that desired information can be obtained with sufficient precision or so that an hypothesis can be tested properly.Ulmus: A plant genus of the family ULMACEAE that is susceptible to Dutch elm disease which is caused by the ASCOMYCOTA fungus, Ophiostoma.Polymorphism, Single Nucleotide: A single nucleotide variation in a genetic sequence that occurs at appreciable frequency in the population.Haplotypes: The genetic constitution of individuals with respect to one member of a pair of allelic genes, or sets of genes that are closely linked and tend to be inherited together such as those of the MAJOR HISTOCOMPATIBILITY COMPLEX.Genome-Wide Association Study: An analysis comparing the allele frequencies of all available (or a whole GENOME representative set of) polymorphic markers in unrelated patients with a specific symptom or disease condition, and those of healthy controls to identify markers associated with a specific disease or condition.Genetic Predisposition to Disease: A latent susceptibility to disease at the genetic level, which may be activated under certain conditions.Polymorphism, Genetic: The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level.Genotype: The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS.Linkage Disequilibrium: Nonrandom association of linked genes. This is the tendency of the alleles of two separate but already linked loci to be found together more frequently than would be expected by chance alone.Polymerase Chain Reaction: In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.Microfluidics: The study of fluid channels and chambers of tiny dimensions of tens to hundreds of micrometers and volumes of nanoliters or picoliters. This is of interest in biological MICROCIRCULATION and used in MICROCHEMISTRY and INVESTIGATIVE TECHNIQUES.DNA Primers: Short sequences (generally about 10 base pairs) of DNA that are complementary to sequences of messenger RNA and allow reverse transcriptases to start copying the adjacent sequences of mRNA. Primers are used extensively in genetic and molecular biology techniques.Microfluidic Analytical Techniques: Methods utilizing the principles of MICROFLUIDICS for sample handling, reagent mixing, and separation and detection of specific components in fluids.Prenatal Diagnosis: Determination of the nature of a pathological condition or disease in the postimplantation EMBRYO; FETUS; or pregnant female before birth.Algorithms: A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.Carbon Monoxide: Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed)Internal Medicine: A medical specialty concerned with the diagnosis and treatment of diseases of the internal organ systems of adults.Carbon Monoxide Poisoning: Toxic asphyxiation due to the displacement of oxygen from oxyhemoglobin by carbon monoxide.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Arrhythmias, Cardiac: Any disturbances of the normal rhythmic beating of the heart or MYOCARDIAL CONTRACTION. Cardiac arrhythmias can be classified by the abnormalities in HEART RATE, disorders of electrical impulse generation, or impulse conduction.Angina Pectoris: The symptom of paroxysmal pain consequent to MYOCARDIAL ISCHEMIA usually of distinctive character, location and radiation. It is thought to be provoked by a transient stressful situation during which the oxygen requirements of the MYOCARDIUM exceed that supplied by the CORONARY CIRCULATION.Physicians: Individuals licensed to practice medicine.
Each mammalian mitochondrial outer membrane porin protein is dispensable: effects on cellular respiration. (1/42)
Voltage-dependent anion channels (VDACs, also known as mitochondrial porins) are small pore-forming proteins of the mitochondrial outer membrane found in all eukaryotes. Mammals harbor three distinct VDAC isoforms, with each protein sharing 65-70% sequence identity. Deletion of the yeast VDAC1 gene leads to conditional lethality that can be partially or completely complemented by the mammalian VDAC genes. In vitro, VDACs conduct a variety of small metabolites and in vivo they serve as a binding site for several cytosolic kinases involved in intermediary metabolism, yet the specific physiologic role of each isoform is unknown. Here we show that mouse embryonic stem cells lacking each isoform are viable but exhibit a 30% reduction in oxygen consumption. VDAC1 and VDAC2 deficient cells exhibit reduced cytochrome c oxidase activity, whereas VDAC3 deficient cells have normal activity. These results indicate that VDACs are not essential for cell viability and we speculate that reduced respiration in part reflects decreased outer membrane permeability for small metabolites necessary for oxidative phosphorylation. (+info)Characterization of porin isoforms expressed in tumor cells. (2/42)
Mitochondria from malignant tumor cell lines show a higher capability for hexokinase binding than those from normal liver. To explore possible differences in hexokinase binding sites of mitochondria between tumor cells and normal liver, we characterized porin isoforms expressed in tumor cells. Cloning experiments on the three porin isoforms, VDAC1, VDAC2 and VDAC3 from malignant tumor cell line AH130 clearly showed that their primary structures were completely identical to those of the corresponding VDACs of normal liver cells. Possible expression of the fourth porin isoform in AH130 cells was excluded by degenerate primer-based RT-PCR. However, the transcript levels of the three VDAC isoforms in AH130 cells were significantly higher than those in normal liver. These results suggest that the high hexokinase-binding capability of malignant tumor cell mitochondria was not due to any structural difference, but due to a quantitative difference in binding sites. (+info)VDAC2 (porin-2) expression pattern and localization in the bovine testis. (3/42)
In this study, sequencing of voltage-dependent anion channel 2 (VDAC2, porin-2) cDNA from bovine testis is reported. High identity to the murine, rabbit, and human subtypes at both the nucleotide and amino acid levels is demonstrated. mRNA analysis revealed expression of VDAC2 in bovine testis, whereas high levels of VDAC2 proteins were found in late spermatocytes, spermatids, and spermatozoa. In contrast, VDAC1 (porin-1) is exclusively localized in Sertoli cells. The possible role of testicular VDAC2 in providing energy metabolites and in germ cell apoptosis is discussed. (+info)Retinal voltage-dependent anion channel: characterization and cellular localization. (4/42)
PURPOSE: To characterize and localize retinal voltage-dependent anion channel (VDAC) and to understand its possible contribution to mitochondrial function and dysfunction. METHODS: VDAC was characterized by a method involving purification from isolated mitochondria and reconstitution into a planar lipid bilayer (PLB). The permeability transition pore (PTP) was monitored by Ca(2+) accumulation in isolated mitochondria and swelling of mitochondria. Localization was studied by immunocytochemistry and in situ hybridization. RESULTS: Retinal VDACs exhibited the electrophysiological fingerprint of the VDAC superfamily. It had a maximal chord conductance of 3.7 +/- 0.1 nanosiemens (nS) in 1 M NaCl, and a voltage-dependent conductance that was highest at transmembrane potential close to zero. It was modulated by glutamate, which decreased the channel's open probability, and by La(3+) and ruthenium amine binuclear complex (Ru360), which closed the channel. Energized and freshly prepared retinal mitochondria accumulated Ca(2+) that is inhibited by La(3+) ruthenium red and Ru360. Subsequent to Ca(2+) accumulation, mitochondria released the accumulated Ca(2+), probably through activation of the PTP. Ru360 inhibited Ca(2+) release and mitochondrial swelling. VDAC was present in mitochondria of all retinal cell types: photoreceptor, bipolar, horizontal, amacrine, and ganglion cells. Most cells primarily expressed VDAC-1, but they also expressed VDAC-2 and -3. CONCLUSIONS: These results suggest that VDAC is involved in PTP activity and/or regulation and thus is an important player in retinal degeneration associated with PTP-mediated mitochondrial dysfunction. (+info)VDAC2 inhibits BAK activation and mitochondrial apoptosis. (5/42)
The multidomain proapoptotic molecules BAK or BAX are required to initiate the mitochondrial pathway of apoptosis. How cells maintain the potentially lethal proapoptotic effector BAK in a monomeric inactive conformation at mitochondria is unknown. In viable cells, we found BAK complexed with mitochondrial outer-membrane protein VDAC2, a VDAC isoform present in low abundance that interacts specifically with the inactive conformer of BAK. Cells deficient in VDAC2, but not cells lacking the more abundant VDAC1, exhibited enhanced BAK oligomerization and were more susceptible to apoptotic death. Conversely, overexpression of VDAC2 selectively prevented BAK activation and inhibited the mitochondrial apoptotic pathway. Death signals activate "BH3-only" molecules such as tBID, BIM, or BAD, which displace VDAC2 from BAK, enabling homo-oligomerization of BAK and apoptosis. Thus, VDAC2, an isoform restricted to mammals, regulates the activity of BAK and provides a connection between mitochondrial physiology and the core apoptotic pathway. (+info)Neuroactive steroid interactions with voltage-dependent anion channels: lack of relationship to GABA(A) receptor modulation and anesthesia. (6/42)
Neuroactive steroids modulate the function of gamma-aminobutyric acid type A (GABA(A)) receptors in brain; this is the presumed basis of their action as anesthetics. In a previous study using the neuroactive steroid analog, (3alpha,5beta)-6-azi-3-hydroxypregnan-20-one (6-AziP), as a photoaffinity-labeling reagent, we showed that voltage-dependent anion channel-1 (VDAC-1) was the predominant protein labeled in brain. Antisera to VDAC-1 were shown to coimmunoprecipitate GABA(A) receptors, suggesting a functional relationship between steroid binding to VDAC-1 and modulation of GABA(A) receptor function. This study examines the contribution of steroid binding to VDAC proteins to modulation of GABA(A) receptor function and anesthesia. Photolabeling of 35-kDa protein with [(3)H]6-AziP was reduced 85% in brain membranes prepared from VDAC-1-deficient mice but was unaffected by deficiency of VDAC-3. The photolabeled 35-kDa protein in membranes from VDAC-1-deficient mice was identified by two-dimensional electrophoresis and electrospray ionization-tandem mass spectrometry as VDAC-2. The absence of VDAC-1 or VDAC-3 had no effect on the ability of neuroactive steroids to modulate GABA(A) receptor function as evidenced by radioligand ([(35)S] t-butylbicyclophosphorothionate) binding or by electrophysiological studies. Electrophysiological studies also showed that neuroactive steroids modulate GABA(A) receptor function normally in VDAC-2-deficient fibroblasts transfected with alpha(1)beta(2)gamma(2) GABA(A) receptor subunits. Finally, the neuroactive steroid pregnanolone [(3alpha,5beta)-3-hydroxypregnan-20-one] produced anesthesia (loss of righting reflex) in VDAC-1- and VDAC-3-deficient mice, and there was no difference in the recovery time between the VDAC-deficient mice and wild-type controls. These data indicate that neuroactive steroid binding to VDAC-1, -2, or -3 is unlikely to mediate GABA(A) receptor modulation or anesthesia. (+info)Voltage-dependent anion-selective channels VDAC2 and VDAC3 are abundant proteins in bovine outer dense fibers, a cytoskeletal component of the sperm flagellum. (7/42)
Outer dense fibers (ODF) are specific subcellular components of the sperm flagellum. The functions of ODF have not yet been clearly elucidated. We have investigated the protein composition of purified ODF from bovine spermatozoa and found that one of the most abundant proteins is a 30-32-kDa polypeptide. This protein was analyzed by sequencing peptides derived following limited proteolysis. Peptide sequences were found to match VDAC2 and VDAC3. VDACs (voltage-dependent, anion-selective channels) or eukaryotic porins are a group of proteins first identified in the mitochondrial outer membrane that are able to form hydrophilic pore structures in membranes. In mammals, three VDAC isoforms (VDAC1, -2, -3) have been identified by cDNA cloning and sequencing. Antibodies against synthetic peptides specific for the three mammal VDAC isoforms were generated in rabbits. Their specificity was demonstrated by immunoblotting using recombinant VDAC1, -2, and -3. In protein extracts of bovine spermatozoa, VDAC1, -2, and -3 were detected by specific antibodies, while only VDAC2 and -3 were found as solubilized proteins derived from purified bovine ODFs. Immunofluorescence microscopy of spermatozoa revealed that anti-VDAC2 and anti-VDAC3 antibodies clearly bound to the sperm flagellum, in particular to the ODF. Transmission electron immunomicroscopy supported the finding that VDAC2 protein is abundant in the ODF. Since the ODF does not have any known membranous structure, it is tempting to speculate that VDAC2 and VDAC3 might have an alternative structural organization and different functions in ODF than in mitochondria. (+info)Bax-dependent regulation of Bak by voltage-dependent anion channel 2. (8/42)
Many studies have demonstrated a critical role of Bax in mediating apoptosis, but the role of Bak in regulating cancer cell apoptotic sensitivities in the presence or absence of Bax remains incompletely understood. Using isogenic cells with defined genetic deficiencies, here we show that in response to intrinsic, extrinsic, and endoplasmic reticulum stress stimuli, HCT116 cells show clear-cut apoptotic sensitivities in the order of Bax+/Bak+ > Bax+/Bak- >> Bax-/Bak+ >> Bax-/Bak-. Small interference RNA-mediated knockdown of Bak in Bax-deficient cells renders HCT116 cells completely resistant to apoptosis induction. Surprisingly, however, Bak knockdown in Bax-expressing cells only slightly affects the apoptotic sensitivities. Bak, like Bax, undergoes the N terminus exposure upon apoptotic stimulation in both Bax-expressing and Bax-deficient cells. Gel filtration, chemical cross-linking, and co-immunoprecipitation experiments reveal that different from Bax, which normally exists as monomers in unstimulated cells and is oligomerized by apoptotic stimulation, most Bak in unstimulated HCT116 cells exists in two distinct protein complexes, one of which contains voltage-dependent anion channel (VDAC) 2. During apoptosis, Bak and Bax form both homo- and hetero-oligomeric complexes that still retain some VDAC-2. However, the oligomeric VDAC-2 complexes are diminished, and Bak does not interact with VDAC-2 in Bax-deficient HCT116 cells. These results highlight VDAC-2 as a critical inhibitor of Bak-mediated apoptotic responses. (+info)Chandra D, Choy G, Daniel PT, Tang DG (May 2005). "Bax-dependent regulation of Bak by voltage-dependent anion channel 2". The ... Voltage-dependent anion-selective channel protein 2 is a protein that in humans is encoded by the VDAC2 gene on chromosome 10. ... Li Z, Wang Y, Xue Y, Li X, Cao H, Zheng SJ (Feb 2012). "Critical role for voltage-dependent anion channel 2 in infectious ... Alvira CM, Umesh A, Husted C, Ying L, Hou Y, Lyu SC, Nowak J, Cornfield DN (Nov 2012). "Voltage-dependent anion channel-2 ...
"Affixing N-terminal α-helix to the wall of the voltage-dependent anion channel does not prevent its voltage gating". The ... "Mapping of residues forming the voltage sensor of the voltage-dependent anion-selective channel". Proceedings of the National ... Voltage-dependent anion-selective channel 1 (VDAC-1) is a beta barrel protein that in humans is encoded by the VDAC1 gene ... "Entrez Gene: VDAC1 voltage-dependent anion channel 1". Reina S, Palermo V, Guarnera A, Guarino F, Messina A, Mazzoni C, De ...
"Bcl-XL interacts with Apaf-1 and inhibits Apaf-1-dependent caspase-9 activation". Proceedings of the National Academy of ... and have been shown to regulate outer mitochondrial membrane channel (VDAC) opening. VDAC regulates mitochondrial membrane ... 275 (2): 1439-48. doi:10.1074/jbc.275.2.1439. PMID 10625696. Qin W, Hu J, Guo M, Xu J, Li J, Yao G, Zhou X, Jiang H, Zhang P, ... Bcl-2-like 1 or BCL2L1 is a human gene. Through alternative splicing, it encodes both of the human proteins Bcl-xL and Bcl-xS. ...
Arbel, Nir; Shoshan-Barmatz, Varda (2010-02-26). "Voltage-dependent anion channel 1-based peptides interact with Bcl-2 to ... mitochondrial membrane of the animal cell where they are thought to form a complex with the voltage-dependent anion channel ... Kinnally KW, Antonsson B (May 2007). "A tale of two mitochondrial channels, MAC and PTP, in apoptosis". Apoptosis. 12 (5): 857- ... Martinez-Caballero S, Dejean LM, Jonas EA, Kinnally KW (June 2005). "The role of the mitochondrial apoptosis induced channel ...
This protein is reported to interact with, and increase the opening of, the mitochondrial voltage-dependent anion channel (VDAC ... BAX is believed to interact with, and induce the opening of the mitochondrial voltage-dependent anion channel, VDAC. ... 2 (3): 238-40. doi:10.4161/auto.2730. PMID 16874066. [permanent dead link] Weng C, Li Y, Xu D, Shi Y, Tang H (March 2005). " ... Bcl-2 family members share one or more of the four characteristic domains of homology entitled the Bcl-2 homology (BH) domains ...
It interacts with and accelerates the opening of the mitochondrial voltage-dependent anion channel, which leads to a loss in ... Moreover, BAK1 is believed to induce the opening of the mitochondrial voltage-dependent anion channel, leading to release of ... and do not directly modulate voltage-dependent anion channel activity". Proceedings of the National Academy of Sciences of the ... 3 (2): E43-6. doi:10.1038/35055145. PMID 11175758. Lin B, Kolluri SK, Lin F, Liu W, Han YH, Cao X, Dawson MI, Reed JC, Zhang XK ...
Voltage-dependent anion channels are a class of porin ion channel located on the outer mitochondrial membrane. There is debate ... "Mapping of residues forming the voltage sensor of the voltage-dependent anion-selective channel". Proc. Natl. Acad. Sci. USA. ... Voltage-Dependent Anion Channels at the US National Library of Medicine Medical Subject Headings (MeSH) This article ... De Pinto, V.; Messina, A.; Lane, D. J. R.; Lawen, A. (2010). "Voltage-dependent anion-selective channel (VDAC) in the plasma ...
... voltage-dependent anion channels MeSH D12.776.157.530.400.500.520.500 -- voltage-dependent anion channel 1 MeSH D12.776.157.530 ... 520.750 -- voltage-dependent anion channel 2 MeSH D12.776.157.530.400.600 -- potassium channels MeSH D12.776.157.530.400.600. ... trpp cation channels MeSH D12.776.157.530.400.901.888 -- trpv cation channels MeSH D12.776.157.530.450.074 -- anion transport ... potassium channels, tandem pore domain MeSH D12.776.157.530.400.600.900 -- potassium channels, voltage-gated MeSH D12.776. ...
Voltage-dependent anion-selective channel protein 3 (VDAC3) is a protein that in humans is encoded by the VDAC3 gene on ... "Entrez Gene: voltage-dependent anion channel 3". Lee MJ, Kim JY, Suk K, Park JH (May 2004). "Identification of the hypoxia- ... De Pinto V, Messina A, Lane DJ, Lawen A (May 2010). "Voltage-dependent anion-selective channel (VDAC) in the plasma membrane". ... Hinsch KD, De Pinto V, Aires VA, Schneider X, Messina A, Hinsch E (Apr 2004). "Voltage-dependent anion-selective channels VDAC2 ...
... voltage-dependent anion channels MeSH D12.776.543.550.425.730.520.500 -- voltage-dependent anion channel 1 MeSH D12.776.543.550 ... voltage-dependent anion channels MeSH D12.776.543.585.400.730.520.500 -- voltage-dependent anion channel 1 MeSH D12.776.543.585 ... 520.750 -- voltage-dependent anion channel 2 MeSH D12.776.543.550.425.750 -- potassium channels MeSH D12.776.543.550.425.750. ... 520.750 -- voltage-dependent anion channel 2 MeSH D12.776.543.585.400.750 -- potassium channels MeSH D12.776.543.585.400.750. ...
Crompton M, Virji S, Ward JM (Dec 1998). "Cyclophilin-D binds strongly to complexes of the voltage-dependent anion channel and ... 67 (2): 109-27. doi:10.1006/geno.2000.6242. PMID 10903836. Andersen JS, Lyon CE, Fox AH, Leung AK, Lam YW, Steen H, Mann M, ... 258 (2): 729-35. doi:10.1046/j.1432-1327.1998.2580729.x. PMID 9874241. Bowles KR, Zintz C, Abraham SE, Brandon L, Bowles NE, ... 367 (Pt 2): 541-8. doi:10.1042/BJ20011672. PMC 1222909 . PMID 12149099. Bowles KR, Zintz C, Abraham SE, Brandon L, Bowles NE, ...
Schwarzer C, Barnikol-Watanabe S, Thinnes FP, Hilschmann N (2002). "Voltage-dependent anion-selective channel (VDAC) interacts ... Implication in dynein-dependent vesicle transport". J. Biol. Chem. 273 (46): 30065-8. doi:10.1074/jbc.273.46.30065. PMID ... 2004). "Receptor (CD155)-dependent endocytosis of poliovirus and retrograde axonal transport of the endosome". J. Virol. 78 (13 ... Strovel ET, Wu D, Sussman DJ (2000). "Protein phosphatase 2Calpha dephosphorylates axin and activates LEF-1-dependent ...
Schwarzer C, Barnikol-Watanabe S, Thinnes FP, Hilschmann N (2002). "Voltage-dependent anion-selective channel (VDAC) interacts ... "Voltage-dependent anion-selective channel (VDAC) interacts with the dynein light chain Tctex1 and the heat-shock protein PBP74 ... Bauch A, Campbell KS, Reth M (1998). "Interaction of the CD5 cytoplasmic domain with the Ca2+/calmodulin-dependent kinase ... 3.0.CO;2-L. PMID 9692886. Mueller S, Cao X, Welker R, Wimmer E (2002). "Interaction of the poliovirus receptor CD155 with the ...
"Voltage-dependent anion channels are dispensable for mitochondrial-dependent cell death". Nature Cell Biology. 9 (5): 550-555. ... Initial experiments by Szabó and Zoratti proposed the MPT may comprise Voltage Dependent Anion Channel (VDAC) molecules. ... MPT induction is also due to the dissipation of the difference in voltage across the inner mitochondrial membrane (known as ... I. Binary structure and voltage dependence of the pore". FEBS Letters. 330 (2): 201-205. doi:10.1016/0014-5793(93)80273-w. PMID ...
... the voltage-dependent anion channel". The Journal of Biological Chemistry. 268 (3): 1835-41. PMID 8420959. Aleshin AE, Zeng C, ... which is the ATP-dependent phosphorylation of glucose to G6P. Physiological levels of G6P can regulate this process by ... "Cloning and functional expression in yeast of two human isoforms of the outer mitochondrial membrane channel, ... 31 (2): 197-212. doi:10.1016/s0047-6374(85)80030-0. PMID 4058069. Wang F, Wang Y, Zhang B, Zhao L, Lyubasyuk V, Wang K, Xu M, ...
Family Voltage-dependent anion channel Aquaporin Porins at the US National Library of Medicine Medical Subject Headings (MeSH) ... CS1 maint: Extra text: authors list (link) Besnard M, Martinac B, Ghazi A (1997). "Voltage-dependent Porin-like Ion Channels in ... and also display a greater voltage-dependent role during metabolism. Archaea also contain ion channels that have originated ... Porins are water-filled pores and channels found in the membranes of bacteria and eukaryotes. Porin-like channels have also ...
Bax is believed to interact with, and induce the opening of the mitochondrial voltage-dependent anion channel, VDAC. ... or tumor necrosis factor-dependent cell death requires caspase-3". J. Biol. Chem. 276 (24): 21907-15. doi:10.1074/jbc. ... "Caspase-8 activation and bid cleavage contribute to MCF7 cellular execution in a caspase-3-dependent manner during ... Bcl-2 proteins act as anti- or pro-apoptotic regulators that are involved in a wide variety of cellular activities. BID is a ...
... or voltage dependent anion channel. This association confers hexokinase direct access to ATP generated by mitochondria, which ... The addition of a charged phosphate group at the 6-position of hexoses also ensures 'trapping' of glucose and 2-deoxyhexose ... and 2-fluoro-2-deoxyglucose) within cells, as charged hexose phosphates cannot easily cross the cell membrane. Hexokinases I ...
... and no permeability to anions. Channel open probability is voltage- and cytoplasmic Ca2+-independent. The generalized transport ... The mammalian NS channel proteins have been implicated in platelet derived growth factor (PDGF)-dependent single channel ... They are also the non-selective (NS) cation channels of the mammalian cytoplasmic membrane. NSCC2 channels are believed to ... These channels are essentially closed in serum deprived tissue-culture cells and are specifically opened by exposure to PDGF. ...
They are associated with the major outer membrane porins (in prokaryotes) and with the voltage-dependent anion channel (in ... PBR forms a multimeric complex with the voltage-dependent anion channel (VDAC) and adenine nucleotide carrier. Molecular ... association with the voltage-dependent anion channel and the adenine nucleotide carrier". Proc. Natl. Acad. Sci. U.S.A. 89 (8 ... 45 (2): 201-11. PMID 8114671. Zeng X, Kaplan S (November 2001). "TspO as a modulator of the repressor/antirepressor (PpsR/AppA ...
This interaction is important for rapid uptake of calcium by mitochondria through Voltage dependent anion channels (VDACs), ... RNA-dependent protein kinase (PKR)-like ER kinase), PERK contributes to apoptosis twofold by sustaining the levels of pro- ... This increased connectivity also caused an abnormality in Ca+2 signaling between neurons. Also with regard to the role in MAMs ... MAMS play an important role in Ca+2 Homeostasis, phospholipid and cholesterol metabolism. Research has associated the ...
The PTP is composed of the voltage-dependent anion channel (VDAC), the inner membrane protein adenine nucleotide translocator ( ... 2001). "Defective Cytochrome c-dependent Caspase Activation in Ovarian Cancer Cell Lines Due to Diminished or Absent Apoptotic ... 2001). "Apaf-1 Protein Deficiency Confers Resistance to Cytochrome c-dependent Apoptosis in Human Leukemic Cells". Journal of ... Bcl-2 was the first oncogene found to cause cancer-inhibiting apoptosis. It is over expressed in tumors and is resistant to ...
"Voltage-dependent anion channels are dispensable for mitochondrial-dependent cell death". Nature Cell Biology. 9 (5): 550-5. ... Hassouna A, Matata BM, Galiñanes M (Nov 2004). "PKC-epsilon is upstream and PKC-alpha is downstream of mitoKATP channels in the ... Li H, Yang T, Long Z, Cheng J (17 June 2014). "Effect of mitochondrial ATP-sensitive potassium channel opening on the ... Liedtke CM, Yun CH, Kyle N, Wang D (Jun 2002). "Protein kinase C epsilon-dependent regulation of cystic fibrosis transmembrane ...
The voltage dependent anion channel of the mitochondrion is also up regulated. Infection with WSSV differs from other described ... December 2, 2016. Retrieved 2016-12-08. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015. Nadala, E. C. B. Jr.; L. ...
... also blocks homomeric KCNQ1 and KCNQ4 voltage gated potassium channels which contribute to vascular tone with ... in blocking voltage-dependent and calcium-activated potassium currents in hippocampal neurons". The Journal of Pharmacology and ... from addition of the transient anion on the methyl group of the picoline to the more electrophilic carbonyl group. The alcohol ... Sun, J.; Kapur, J. (2012). "M-type potassium channels modulate Schaffer collateral-CA1 glutamatergic synaptic transmission". ...
This gene encodes an alpha-1 subunit of a voltage-dependent calcium channel. Calcium channels mediate the influx of calcium ... calcium channel activity. • metal ion binding. • voltage-gated ion channel activity. • ion channel activity. • protein binding ... high voltage-gated calcium channel activity. • voltage-gated calcium channel activity involved in AV node cell action potential ... voltage-gated calcium channel activity. • voltage-gated calcium channel activity involved in cardiac muscle cell action ...
Voltage-dependent anion channels are dispensable for mitochondrial-dependent cell death.. Title. Voltage-dependent anion ... Voltage-Dependent Anion Channel 1, Voltage-Dependent Anion Channel 2, Voltage-Dependent Anion Channels. ... Home Voltage-dependent anion channels are dispensable for mitochondrial-dependent cell death. ... is considered the mediator of this event and has been hypothesized to minimally consist of the voltage-dependent anion channel ...
... chloride intracellular channel 4), Authors: Velayuthan C Padmakumar, Stuart H Yuspa. Published in: Atlas Genet Cytogenet Oncol ... angiogenesis endothelial cell morphogenesis voltage-gated ion channel activity chloride channel activity protein binding ... Overexpressed chloride intracellular channel protein CLIC4 (p64H1) is an essential component of novel plasma membrane anion ... angiogenesis endothelial cell morphogenesis voltage-gated ion channel activity chloride channel activity protein binding ...
stunning; slaughtering; proteomics; voltage dependent anion channel 2;chicken muscle. Subjects:. T Technology , TA Engineering ... Over expression of Voltage Dependent Anion Channel 2 (VDAC2) in muscles of electrically stunned chickens ... Abu Samah, Norshahida and Amid, Azura and Yusof, Faridah (2011) Over expression of Voltage Dependent Anion Channel 2 (VDAC2) in ... Voltage dependent anion channel 2 (VDAC2) was identified to be over expressed in the muscle sample of over stunned chicken. The ...
... voltage-dependent anion channel 2), was co-localized in SR-mitochondrial junctions. Furthermore, a fractionation study revealed ... Coupling of ryanodine receptor 2 and voltage-dependent anion channel 2 is essential for Ca2+ transfer from the sarcoplasmic ... Coupling of ryanodine receptor 2 and voltage-dependent anion channel 2 is essential for Ca2+ transfer from the sarcoplasmic ... By using the bacterial 2-hybrid, glutathione transferase pull-down, co-immunoprecipitation and immunocytochemistry assays, we ...
... and voltage-dependent anion channel (VDAC) in the juvenile lung. ... and voltage-dependent anion channel (VDAC) in the juvenile lung ... Maternal undernutrition during early to mid pregnancy and programming of mitochondrial uncoupling protein-2 (UCP2) ... Voltage-dependent anion channel (VDAC), together with uncoupling protein-2 (UCP2) may regulate reactive oxygen species within ... Gnanalingham GM1, Yakubu DP1, Gopalakrishnan GS1, Mostyn A1, Alves-Guerra MC2, Pecqueur C2, Miroux B2, Symonds ME1, Stephenson ...
The channel-forming protein called VDAC forms the major pathway in the mitochondrial outer membrane and controls metabolite ... Voltage-Dependent Anion Channel 1 * Voltage-Dependent Anion Channel 2 * Voltage-Dependent Anion Channels ... The channel-forming protein called VDAC forms the major pathway in the mitochondrial outer membrane and controls metabolite ... Mouse VDAC isoforms expressed in yeast: channel properties and their roles in mitochondrial outer membrane permeability J Membr ...
Voltage-dependent anion-selective channel protein 2. Xenopus laevis (African clawed frog) ... Voltage-dependent anion-selective channel protein 2 UniProtKBInterProInteractive Modelling. 282 aa; Sequence (Fasta) ...
2014). Voltage-dependent anion channels: the wizard of the mitochondrial outer membrane. Biol. Chem. 395, 1435-1442. doi: ... voltage-dependent anion channel 2. VMO-1. vitelline membrane outer layer protein 1. ... 2016). Characterization of oyster voltage-dependent anion channel 2 (VDAC2) suggests its involvement in apoptosis and host ... voltage-dependent anion channel 2-like protein (VDAC2) and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) (Fig. 3). Note that ...
Voltage-dependent anion-selective channel protein 3. Bos taurus. 87.5. 16 (5). KK up regulated. 15.9. 91. ... Voltage-dependent anion-selective channel protein 2. Bos taurus. 120.7. 21 (5). M specific isoform. -. 500. ... Voltage-dependent anion-selective channel protein 2 (VDAC-2) (Outer mitochondrial membrane protein porin 2). ... cAMP-dependent protein kinase type I-alpha regulatory subunit. Bos taurus. 72.3. 12 (5). M specific isoform. -. 524. ...
VDAC3; voltage dependent anion channel 3 [KO:K15041]. 1536 CYBB; cytochrome b-245 beta chain [KO:K21421] [EC:1.-.-.-]. ... VDAC2; voltage dependent anion channel 2 [KO:K15040]. 7419 ... PCBP2; poly(rC) binding protein 2 [KO:K13162]. 30061 SLC40A1; ... Ferritinophagy via NCOA4 is required for erythropoiesis and is regulated by iron dependent HERC2-mediated proteolysis. ... 1-Octadecanoyl-2-(15S-hydroxy-5Z,8Z,11Z,13E-eicosatetraenoyl)-sn-glycero-3-phosphoethanolamine. ...
Chandra D, Choy G, Daniel PT, Tang DG (May 2005). "Bax-dependent regulation of Bak by voltage-dependent anion channel 2". The ... Voltage-dependent anion-selective channel protein 2 is a protein that in humans is encoded by the VDAC2 gene on chromosome 10. ... Li Z, Wang Y, Xue Y, Li X, Cao H, Zheng SJ (Feb 2012). "Critical role for voltage-dependent anion channel 2 in infectious ... Alvira CM, Umesh A, Husted C, Ying L, Hou Y, Lyu SC, Nowak J, Cornfield DN (Nov 2012). "Voltage-dependent anion channel-2 ...
"Affixing N-terminal α-helix to the wall of the voltage-dependent anion channel does not prevent its voltage gating". The ... "Mapping of residues forming the voltage sensor of the voltage-dependent anion-selective channel". Proceedings of the National ... Voltage-dependent anion-selective channel 1 (VDAC-1) is a beta barrel protein that in humans is encoded by the VDAC1 gene ... "Entrez Gene: VDAC1 voltage-dependent anion channel 1". Reina S, Palermo V, Guarnera A, Guarino F, Messina A, Mazzoni C, De ...
voltage-dependent anion channel 2 Assay Type: SYBR® Green Assay Design: exonic Application: Gene Expression Unique Assay ID: ... voltage-dependent anion channel 2 Assay Type: EvaGreen Application: Gene Expression Unique Assay ID: dHsaEG5006665 Info: EG; ... voltage-dependent anion channel 2 Assay Type: Probe Application: Gene Expression Unique Assay ID: dHsaCPE5031642 Info: FAM; ... voltage-dependent anion channel 2 Assay Type: Probe Application: Gene Expression Unique Assay ID: dHsaCPE5031643 Info: HEX; ...
A chemical glycoproteomics platform reveals O-GlcNAcylation of mitochondrial voltage-dependent anion channel 2. Palaniappan, ... We have previously shown that second-messenger-dependent kinases (cAMP-dependent kinase, protein kinase C) in the olfactory ... The beta 2-adrenergic receptor (beta 2AR) can be constitutively activated by mutations in the third intracellular loop. Whereas ... A constitutively active mutant beta 2-adrenergic receptor is constitutively desensitized and phosphorylated. Codina, J; ...
Journal Article] Mitochondrial Ca2+ uptake by the voltage-dependent anion channel 2 regulates cardiac rhythmicity.2014. *. ... Journal Article] RING finger protein 121 facilitates the degradation and membrane localization of voltage-gated sodium channels ... Presentation] JSAP1 and JLP regulate kinesin-1-dependent axonal transport to prevent neuronal degeneration.2014. *. Author(s). ... Journal Article] JSAP1/JIP3 and JLP regulate kinesin-1-dependent axonal transport to prevent neuronal degeneration.2015. *. ...
Voltage-dependent anion-selective channel protein 2. P45880. VDAC2_HUMAN. VDAC2. 43. ↓ 5,89. 0.003. 38.6. 7.7. 187. ... Probable ATP-dependent RNA helicase DDX5. P17844. DDX5_HUMAN. DDX5. 37. ↑ 7,01. 0.002. 69.6. 9.1. 109. ... The ion acceleration voltage was 20 kV. Each spectrum was internally calibrated with the masses of two trypsin autolysis ... Lessnick SL, Dacwag CS, Golub TR (2002) The Ewings sarcoma oncoprotein EWS/FLI induces a p53-dependent growth arrest in ...
Phyllanthus inhibits A549 metastasis by suppressing ERK1/2 and hypoxia pathways that led to suppression of various critical ... Phyllanthus was observed to cause antimetastatic activities by inhibiting ERK1/2 pathway via suppression of Raf protein. ... Voltage-dependent anion-selective channel protein 1. -0.37. -0.19. -0.20. N/A ... Hypoxia-inducible factor-1 (HIF-1) is the determining factor for oxygen-dependent gene regulation and is a dimer of HIF-1α and ...
Voltage-Dependent Anion Channel 2 of Arabidopsis thaliana (AtVDAC2) Is Involved in ABA-Mediated Early Seedling Development ... Among four SNPs, only C270T polymorphism showed significant differences in the frequency of the allele (χ2 = 7.809, p = 0.005) ... 2. Key Laboratory of Child Development and Learning Science, Ministry of Education, Southeast University, Nanjing, 210096, ... χ2 = 28.19,p = 3.44e-005). We suggest that BDNF has a possible role in the pathogenesis of autism. The study also show that the ...
Located in the outer mitochondrial membrane, VDAC forms channels that control the flux of ions and metabolites across the ... Located in the outer mitochondrial membrane, VDAC forms channels that control the flux of ions and metabolites across the ... 2013). Direct modulation of the outer mitochondrial membrane channel, voltage-dependent anion channel 1 (VDAC1) by cannabidiol ... Voltage-dependent anion channels control the release of the superoxide anion from mitochondria to cytosol. J. Biol. Chem. 278, ...
Epub 2014 Jul 2. Research Support, N.I.H., Extramural; Research Support, U.S. Govt, Non-P.H.S.; Review ... D) Single chain β-barrel of mitochondrial voltage dependent anion channel VDAC-2 from the MOM of Danio rerio (4BUM). VDAC-2 ... A) Trimer of maltoporin LamB from the OM of E. coli with sucrose in the hydrophilic channel (1AF6). Each monomer of the sugar ... The channel has a cytoplasmic funnel, the central hydrophobic ring, and external funnel filled by the TM2a helical plug ( ...
This gene encodes a member of the voltage-dependent anion channel pore-forming family of proteins that are considered the main ... Available for probe- and dye-based assays in ROX- dependent or ROX-independent real-time PCR detection systems. ... Pseudogenes have been identified on chromosomes 1 2 12 and 21 and alternative splicing results in multiple transcript variants ...
voltage-dependent anion channel 2. VGLL4. 9686. VGLL4. vestigial like 4 (Drosophila). ...
voltage-dependent anion channel 1. 7417. 7417. VDAC2. voltage-dependent anion channel 2. ...
... or voltage-dependent anion channel (VDAC; Cell Signaling) detection was used as confirmation of the purity of the cytosolic ( ... C: representative line-scan images obtained from H9c2 cells overexpressing RyR1 or RyR2 loaded with fluo-3. The time-dependent ... RyR1 overexpression induces Ca2+-dependent mitochondrial ATP production in cardiac H9c2 cells. A: expression and localization ... influx mechanisms are regulated not solely by MCU but also by multiple channels/transporters. We have previously reported that ...
10737788 - Bh4 domain of antiapoptotic bcl-2 family members closes voltage-dependent anion channel.... ... 25131918 - Inverse relationship between raft lrp1 localization and non-raft erk1,2/mmp9 activation.... 22749528 - ...
VDAC2ApoptosisMitochondriaVdac1VDAC3CytochromePorinMetabolismSelectivityHexokinaseLocalizationGeneSelectivePseudogeneZebrafishPolypeptideMembranePhosphorylationRegulatesMolecularRegulationModulateShimizuInhibitorSuperoxideNeuronalConductanceGenesActivityMiceKinasesUptakeMitochondrial hyperpolarizationCancer CellsCalciumCellsEpithelialAffectsERK1OxidativePotassiumAntitumor
- The different voltage studied were 10 V, 40 V and 70 V while the values for current studied were 0.25 A, 0.5 A, and 0.75 A. After the proteomics analyses using 2D Platinum ImageMaster 6.0 and Matrix-assisted laser desorption ionization- time of flight (MALDI TOF) spectrometry identification, Voltage dependent anion channel 2 (VDAC2) was identified to be over expressed in the muscle sample of over stunned chicken. (iium.edu.my)
- By using the bacterial 2-hybrid, glutathione transferase pull-down, co-immunoprecipitation and immunocytochemistry assays, we found that RyR2 (ryanodine receptor type 2), which is physically associated with VDAC2 (voltage-dependent anion channel 2), was co-localized in SR-mitochondrial junctions. (kist.re.kr)
- VDAC2 also has normal gating activity but may exist in 2 forms, one with a lower conductance and selectivity. (nih.gov)
- Voltage-dependent anion-selective channel protein 2 is a protein that in humans is encoded by the VDAC2 gene on chromosome 10. (wikipedia.org)
- The VDAC2 protein belongs to a group of mitochondrial membrane channels involved in translocation of adenine nucleotides through the outer membrane. (wikipedia.org)
- Six of these altered proteins were identified using mass spectrometry (MS) and confirmed using MS/MS. The heterogenous nuclear ribonucleoprotein (hnRNP) F, guanine nucleotide binding protein (G protein), voltage-dependent anion channel 2 (VDAC2) and cytochrome bc1 were present in abundance in the NiV-infected SK-N-MC cells in contrast to hnRNPs H and H2 that were significantly down-regulated. (biomedcentral.com)
- VDACs have also been observed to interact with pro- or antiapoptotic proteins, such as Bcl-2 family proteins and kinases, and so may contribute to apoptosis independently from the MPTP. (wikipedia.org)
- Although in vivo apoptosis did not require the Fas death receptor, B cells were protected by interleukin (IL)-4 or CD40L, or overexpression of Bcl-2. (rupress.org)
- These results suggest that TGF-β1 induces apoptosis through the cleavage of BAD in a Smad3-dependent mechanism. (asm.org)
- The Bcl-2 family proteins serve as critical regulators of pathways involved in apoptosis, acting to either inhibit or promote cell death ( 26 , 33 ). (asm.org)
- In interleukin-3 (IL-3)-dependent lymphoid cells, BAD, a proapoptotic member of the Bcl-2 family of proteins is a key regulator of apoptosis ( 19 ). (asm.org)
- B cell lymphoma 2 (Bcl-2) proteins are the central regulators of apoptosis. (pubmedcentralcanada.ca)
- During stroke associated apoptosis, cytosolic c-Jun N-terminal Kinases (JNKs) and Bcl-2 family proteins translocate towards mitochondria and promote cytochrome c release by interacting with the outer mitochondrion membrane associated proteins. (readbyqxmd.com)
- Type 2 diabetic subjects had significantly increased mRNA and protein expression of NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC), and proinflammatory cytokines in MDMs cultured with autologous sera compared with healthy controls. (diabetesjournals.org)
- Tsujimoto, Y. Role of Bcl-2 family proteins in apoptosis: apoptosomes or mitochondria. (springer.com)
- Depletion of the porins Por1 and Por2 destabilized Ups1 and Ups2, decreased CL levels by ~90%, and caused loss of Ups2-dependent phosphatidylethanolamine synthesis, but did not affect Ups2-independent phosphatidylethanolamine synthesis in mitochondria. (tcdb.org)
- In addition, she found that co-transfecting both SOD1-G93A and Bcl-2 deformed mitochondria, disrupting membranes and causing vacuolization, which did not occur in cells expressing mSOD1 only. (alzforum.org)
- Naniche and colleagues suspected that the mSOD1-Bcl-2 interaction would have functional consequences for mitochondria, so they isolated the organelles from HEK293T cells for patch-clamp studies of ion conductance. (alzforum.org)
- But in Bcl-2-positive mitochondria, mSOD1 increased conductance. (alzforum.org)
- In terms of ATP generation, one mole of glucose generates ∼36 mol of ATP when oxidized completely in mitochondria, whereas metabolism of one mole of glucose to lactate by glycolysis generates only 2 mol of ATP. (aspetjournals.org)
- This complex system resides in the mitochondria of cells and utilizes oxidizable substrates to fuel the conversion of ADP to ATP and is dependent on molecular oxygen as the final electron acceptor. (syr.edu)
- Small SOD1-like therapeutic peptides that specifically block formation of the mutSOD1/Bcl-2 complex, recover both aspects of mitochondrial dysfunction: they prevent mitochondrial hyperpolarization and cell loss as well as restore ADP permeability in mitochondria of symptomatic mutSOD1-G93A mice. (jneurosci.org)
- To design potent compounds that target the key mediators of mutSOD1 toxicity, we dissected the relationship between mutSOD1 and its proposed mitochondrial partners, Bcl-2 and VDAC1 in particular, and analyzed the order of events downstream of mutSOD1 that destabilize the mitochondria. (jneurosci.org)
- Morphology and structure of mitochondria in mammalian skeletal muscle, heart, and liver are very different ( 2 ). (mcponline.org)
- Even in moving organelles, such as mitochondria, physical connections with the endoplasmic reticulum (ER) have been observed ( 1 ) as electron-dense structures that bridge the organelles ( 2 ). (sciencemag.org)
- When facing ER stress, the Sig-1R dissociates from cognate co-chaperone BiP and acts as a free chaperone to stabilize IP3R3s to increase Ca 2+ signaling from ER into mitochondria to facilitate the production of ATP [ 2 ]. (biomedcentral.com)
- In particular, since VDAC1 is the major calcium ion transport channel, its dysfunction is implicated in cancer, Parkinson's (PD), and Alzheimer's disease. (wikipedia.org)
- Of the three isoforms, VDAC1 is the main calcium ion transport channel and the most abundantly transcribed. (wikipedia.org)
- Here, we report that a novel viral mitochondrial anti-apoptotic protein (vMAP) of murine gamma-herpesvirus 68 (gammaHV-68) interacts with Bcl-2 and voltage-dependent anion channel 1 (VDAC1) in a genetically separable manner. (nih.gov)
- Here, we report that a novel viral mitochondrial anti-apoptotic protein (vMAP) of murine γ-herpesvirus 68 (γHV-68) interacts with Bcl-2 and voltage-dependent anion channel 1 (VDAC1) in a genetically separable manner. (harvard.edu)
- In mutSOD1-G93A cells and mice, the newly exposed BH3 domain in Bcl-2 alters the normal interaction between Bcl-2 and VDAC1 thus reducing permeability of the outer mitochondrial membrane. (jneurosci.org)
- However, Bcl-2 is also a known binding partner and regulator of VDAC1 in the OMM ( Arbel and Shoshan-Barmatz, 2010 ). (jneurosci.org)
- perhaps in ALS, misfolded mutSOD1 targets VDAC1 not directly, but through its aberrant interaction with Bcl-2 and the resulting impaired VDAC1 function is only one of the aspects of mitochondrial dysfunction in ALS. (jneurosci.org)
- We demonstrated that mitochondrial calcium released by voltage-dependent anion channel 1 (VDAC1) after sciatic nerve injury triggers Schwann cell demyelination via ERK1/2, p38, JNK, and c-JUN activation. (jci.org)
- MRL/lpr mice exhibited increased expression of the mitochondrial voltage-dependent anion channel 1(VDAC1) protein, transaldolase (TAL), Rab4, mTOR activation, and enhanced CD3 and CD4 recycling at 2-3 months, prior to disease development. (jimmunol.org)
- Mutant SOD1 had little effect on the Bcl-2-negative cells, but in the Bcl-2-expressing cells, it doubled the cytochrome c output. (alzforum.org)
- The levels of adenine nucleotide translocator, voltage anion-dependent channel, Bax, Bcl-2, Bcl-xL, AIF and Smac/Diablo, were similar in both cell lines, whereas cytochrome c content was divided by three in the resistant cells. (inserm.fr)
- It interacts with and accelerates the opening of the mitochondrial voltage-dependent anion channel, which leads to a loss in membrane potential and the release of cytochrome c. (acris-antibodies.com)
- Porin 2 is abundant in testis but in small amounts in ovaries. (tcdb.org)
- Voltage-dependent anion channels are a class of porin ion channel . (wikidoc.org)
- Neurons as cells showing a high energy demand dependent on mitochondrial metabolism are particularly sensitive to mitochondrial dysfunction [14- (termedia.pl)
- The open state has a weak anion selectivity whereas the closed state is cation-selective. (tcdb.org)
- Channels formed in planar bilayers exhibit large conductance (4.6 ± 0.3 nS in 1 M KCl), strong voltage dependence and weak anion selectivity. (tcdb.org)
- Single channels of NanC at pH 7.0 have: (1) conductance 100 to 800 pS in 100 mM: KCl to 3 M: KCl), (2) anion over cation selectivity, and (3) two forms of voltage-dependent gating (channel closures above 200 mV). (tcdb.org)
- These channels may also function as a mitochondrial binding site for hexokinase and glycerol kinase. (wikipedia.org)
- Here, we show that the glycolytic enzyme hexokinase 2 (HK2) is crucial for the Warburg effect in human glioblastoma multiforme (GBM), the most common malignant brain tumor. (rupress.org)
- The glycolytic enzyme hexokinase 2 (HK2) represents the first step of glucose utilization in cells. (elsevier.com)
- Here we report the identification of Hexokinase 2 (HK2) as a direct target of miR-143. (biomedcentral.com)
- Here, we report that miR-143 targets and down-regulates the glycolytic enzyme hexokinase 2 (HK2) in colon cancer cell lines. (biomedcentral.com)
- Journal Article] RING finger protein 121 facilitates the degradation and membrane localization of voltage-gated sodium channels. (nii.ac.jp)
- Posttranscriptional modifications, together with the modulation of the levels of expression and subcellular localization of inhibitors (Bcl-2 and Bcl-X L ) and promoters (BAX, BAD, BID, and BIK), determine how cells respond to apoptotic stimuli ( 22 , 26 , 33 ). (asm.org)
- Evidence for secretory pathway localization of a voltage-dependent anion channel isoform. (semanticscholar.org)
- The preferential mitochondrial localization of HK2 at voltage-dependent anion channels provides access to ATP generated by oxidative phosphorylation and generates an ADP/ATP recycling mechanism to maintain high respiration rates and low electron leak. (elsevier.com)
- On the other hand, the effects of PIP5K on ezrin membrane localization were found to be Rac1 dependent The existence of a nuclear PI system has been appreciated and studied for quite some time see sect. (ynykyvykeb.tk)
- Membrane localization of these enzymes is indicative of the polarity of the endothelial functions in the control of the blood-brain interface [ 2 ]. (beds.ac.uk)
- AFG3 ATPase family gene 3-like 2 (S. ce. (broadinstitute.org)
- These cells do not normally express Bcl-2, so Naniche was able to compare Bcl-2-negative cells to those that she stably transfected with the gene for the pore protein. (alzforum.org)
- Crystallographic studies have demonstrated that a domain of SpA forms a complex with human Fab via a conformational surface on BCR that involves side chains from four β strands present in framework subdomains of the clan III gene-encoded V H region ( 2 ). (rupress.org)
- In this report, we explore the role of one bcl-2 gene in nutrient stress responses. (pubmedcentralcanada.ca)
- We report that starvation of Drosophila larvae lacking the bcl-2 gene, buffy , decreases survival rate by more than twofold relative to wild-type larvae. (pubmedcentralcanada.ca)
- We show ΔNp63- dependent regulation of HK2 expression, and we use ChIP, validated by p63-Chip sequencing genomewide profiling analysis, and luciferase assays to demonstrate the presence of one p63-specific responsive element within the 15th intronic region of the HK2 gene, providing evidence of a direct interaction. (elsevier.com)
- At low voltage (10mV), the pore is in an "open" state where the channel is weakly anion selective and allows for a greater flux of metabolites. (wikipedia.org)
- At a higher voltage in the positive or negative direction (>30mV), the pore is in a "closed" state and is weakly cation selective allowing for less metabolites to be transported. (wikipedia.org)
- VDAC1P7 (Voltage Dependent Anion Channel 1 Pseudogene 7) is a Pseudogene. (genecards.org)
- Upregulated interleukin (IL)-1β maturation, IL-18 secretion, and caspase-1 cleavage were observed in MDMs from type 2 diabetic patients after stimulation with various danger molecules (ATP, high-mobility group protein B1, free fatty acids, islet amyloid polypeptide, and monosodium uric acid crystals). (diabetesjournals.org)
- B) A monomer (2NWX, subunit A) has 8 TM helices and 2 reentrant loops from both membrane sides (yellow and orange). (nih.gov)
- It forms an ion channel in the outer mitochondrial membrane (OMM) and also the outer cell membrane. (wikipedia.org)
- Structural analysis of mVDAC1's structure showed a barrel-like channel composed of 19 amphipathic β-strands, with the N-terminus and C-terminus both facing towards the inter membrane space of the mitochondrion. (wikipedia.org)
- In the control, Bcl-2-negative cells, the addition of SOD1-G93A had no effect on outer mitochondrial membrane (OMM) conductance. (alzforum.org)
- The ULK1,2/Atg13 complex, by yet to be known mechanism, catalyzes the scaffolding of Atg protein complexes onto the phagophore membrane. (sigmaaldrich.com)
- Mitochondrial membrane potential is dependent on a proton gradient that exists between the inter-membrane space and the matrix. (jneurosci.org)
- The channel is responsible for the exchange of ATP/ADP and the translocation of ions and other small metabolites over the membrane. (deepdyve.com)
- The MAM, comprising a small section of the outer mitochondrial membrane (OMM) with the ER ( 2 ), defines a laterally differentiated subcompartment of the ER that is dedicated to performing lipid biosynthesis and perhaps other functions necessary for the mitochondrial membranes. (sciencemag.org)
- We identified a novel role for HIF-1α in the regulation of tone in lung via effects on myosin light chain phosphorylation in the pulmonary artery smooth muscle cells and in regulating expression of the β1 subunit of the calcium sensitive potassium channel. (stanford.edu)
- Growth was dependent on both glucose phosphorylation and mitochondrial translocation mediated by AKT signaling, which is often aberrantly activated in GBMs. (rupress.org)
- Phosphorylation of voltage-dependent anion channel by c-Jun N-terminal Kinase-3 leads to closure of the channel. (semanticscholar.org)
- P = 0.008) and oxidative phosphorylation ( P = 0.046) in type 2 diabetes after isometric calf exercise compared with control subjects. (diabetesjournals.org)
- The activity of BAD, a pro-apoptotic BCL-2 family member, is regulated by phosphorylation in response to growth/survival factors. (ebscohost.com)
- Journal Article] Mitochondrial Ca2+ uptake by the voltage-dependent anion channel 2 regulates cardiac rhythmicity. (nii.ac.jp)
- 2 Department of Cellular and Molecular Pharmacology, University of California at San Francisco, San Francisco, CA 94158, USA. (sciencemag.org)
- The two bcl-2 genes in Drosophila modulate the response to stress-induced cell death, but not developmental cell death. (pubmedcentralcanada.ca)
- Tsujimoto, Y. and Shimizu, S.: Bcl-2 family: Life-or-death switch, FEBS lett. (springer.com)
- Mitochondrial targeted HSP90 inhibitor Gamitrinib-TPP (G-TPP) induces PINK1/Parkin-dependent mitophagy. (abcam.com)
- Overexpression of UCP2 decreased reactive oxygen species (ROS) production, which was measured using dihydroethidium because it is specifically oxidized to fluorescent ethidium by the superoxide anion, whereas mice lacking UCP2 exhibited increased ROS relative to wild-type controls. (jneurosci.org)
- Journal Article] JSAP1/JIP3 and JLP regulate kinesin-1-dependent axonal transport to prevent neuronal degeneration. (nii.ac.jp)
- In motor neuronal cells, the mutSOD1/Bcl-2 complex causes mitochondrial hyperpolarization leading to cell loss. (jneurosci.org)
- Tsujimoto, Y Prevention of neuronal cell death by Bcl-2. (springer.com)
- Maintaining the integrity of neuronal networks is dependent on factors involved in the removal of nerve tissue waste products. (termedia.pl)
- Voltage dependent anion channel required for acidification and functions of the Golgi apparatus that may function in counter-ion conductance. (uniprot.org)
- Secreted IFN-α/β induces expression of IFN-stimulated genes that are important for the elimination of viruses ( 2 ). (jimmunol.org)
- Mutation in IDH1 results in neomorphic activity, producing a different metabolite, 2-hydroxyglutaric acid, whereas wild-type IDH1 normally converts isocitrate to α-ketoglutarate coupled with NADP + /NADPH. (rupress.org)
- In fact, this long-term immunologic impairment in SpA-treated mice persists despite the fact that central neo-lymphogenesis reestablishes the level of newly formed S107-expressing B cells in the periphery within 1-2 wk after the last SpA treatment ( 5 ). (rupress.org)
- Finally, unilateral inoculation of sarkosyl-insoluble fractions of GGT homogenates from GGT linked to MAPT P301T, sGGT, and GGT linked to MAPT K317M mutation in the hippocampus, corpus callosum, or caudate/putamen in wild-type mice produces seeding, and time- and region-dependent spreading of phosphorylated, non-oligomeric, and non-truncated 4Rtau and 3Rtau, without GAIs and GOIs but only of coiled bodies. (ibecbarcelona.eu)
- We have previously shown that second-messenger-dependent kinases (cAMP-dependent kinase, protein kinase C) in the olfactory system are essential in terminating second-messenger signaling in response to odorants. (duke.edu)
- The antiarrhythmic compound efsevin directly modulates voltage-dependent anion channel 2 by binding to its inner wall and enhancing mitochondrial Ca 2+ uptake. (annals.org)
- To this aim, the authors tested substances that enhance mitochondrial Ca 2+ uptake for their ability to suppress arrhythmia in a murine model for ryanodine receptor 2 (RyR2)-mediated catecholaminergic polymorphic ventricular tachycardia (CPVT) in vitro and in vivo and in induced pluripotent stem cell-derived cardiomyocytes from a CPVT patient. (onlinejacc.org)
- Here we now show that formation of this toxic complex with Bcl-2 is the primary event in mutSOD1-induced mitochondrial dysfunction, inhibiting mitochondrial permeability to ADP and inducing mitochondrial hyperpolarization. (jneurosci.org)
- Nitric oxide (NO) dependent mitochondrial hyperpolarization (MHP) and enhanced calcium fluxing underlie aberrant T cell activation in Systemic Lupus Erythematosus. (jimmunol.org)
- studied the relationship between Sig-1R and ion channels in cancer cells, they reported that cancer cells expressed active Sig-1Rs that modulated a variety of ion channel families [ 4 ]. (biomedcentral.com)
- This will include an assessment of whether loss of L-type calcium channel function can account for failure of EC coupling and whether significant alterations in the 3-dimensional structure and spatial distribution of transverse-tubules, ryanodine and dihydropyridine receptors are involved in the failure of these cells;2) investigate the effect of metabolic inhibition on the function and structure of couplons in rabbit ventricular myocytes. (grantome.com)
- This will include a measurement of the minimum number of L-type calcium channels in a couplon and the way that metabolic inhibition affects their function. (grantome.com)
- E7820 inhibits angiogenesis by suppressing integrin alpha 2, a cell adhesion molecule expressed on endothelial cells. (cancer.gov)
- Most differentiated, nonproliferating cells aerobically metabolize glucose to pyruvate, which is then oxidized in the mitochondrial matrix by the tricarboxylic acid cycle to yield CO 2 and NADH with minimal production of lactate. (aspetjournals.org)
- Neuroprotective effects of 2,3,5,4'-tetrahydoxystilbene-2-O-β-D-glucoside from Polygonum multiflorum against glutamate-induced oxidative toxicity in HT22 cells. (semanticscholar.org)
- Taken together, these data suggest that NLRP3 inflammasome activation is elevated in myeloid cells from type 2 diabetic patients and that antidiabetic treatment with metformin contributes to modulation of inflammasome activation in type 2 diabetes. (diabetesjournals.org)
- dependent due to the cumulative effect of the drug, Antioxidants are found in every living cell where the accumulation of Cis produces obvious and all biological species and scavenge reactive necrotic changes within the tissues of the affected oxygen within cells. (who.int)
- Our previous study found that cisplatin-resistant ovarian epithelial carcinoma was more dependent on mitochondrial aerobic oxidation to support their growth, suggesting the association between mitochondrial function and chemotherapeutic resistance. (spandidos-publications.com)
- We show that genetic manipulation of uncoupling protein-2 (UCP2) directly affects substantia nigra dopamine cell function. (jneurosci.org)
- The Sig-1R has also been implicated as an ion channel regulator in amyotrophic lateral sclerosis (ALS), a neurodegenerative disease that affects motor neurons. (biomedcentral.com)
- Phyllanthus was observed to cause antimetastatic activities by inhibiting ERK1/2 pathway via suppression of Raf protein. (biomedcentral.com)
- Key mechanisms of hyperglycemia-induced inflammation include nuclear factor-κB-dependent production of proinflammatory cytokines, Toll-like receptor (TLR) expression, increased oxidative stress, and inflammasome activation ( 4 , 5 ). (diabetesjournals.org)
- In addition, a series of adaptive responses induced by cisplatin that maintain tumor cell homeostasis and interfere with apoptotic signaling, including metabolic reprogramming, autophagy and oxidative stress, can lead to cisplatin resistance ( 1 , 2 ). (spandidos-publications.com)
- It was recently shown that motor neurons have the highest levels of Sig-1Rs in the central nervous system (CNS), and that Sig-1Rs may help direct the flow of ions through potassium channels [ 5 ]. (biomedcentral.com)
- Bioreductive activation of quinone antitumor drugs by mitochondrial voltage-dependent anion channel 1. (semanticscholar.org)