• In human mitochondria, almost all mitochondrial proteins originate from the nucleus, except for 13 subunit proteins that make up the crucial system required to perform 'oxidative phosphorylation (OX PHOS)', which are expressed by the mitochondria's self-contained DNA. (bvsalud.org)
  • Mitochondria lacking Hem25p failed to efficiently incorporate IPP into early CoQ precursors, leading to loss of CoQ and turnover of CoQ biosynthetic proteins. (bvsalud.org)
  • It encodes an iron-sulfur (Fe-S) cluster scaffold protein involved in [2Fe-2S] and [4Fe-4S] cluster synthesis and maturation. (wikipedia.org)
  • ISCU encodes a component of the iron-sulfur (Fe-S) cluster scaffold responsible for the synthesis and maturation of [2Fe-2S] and [4Fe-4S] clusters. (wikipedia.org)
  • It is an iron-sulfur transferase that contains binding sites for [2Fe-2S] and [4Fe-4S] clusters. (wikipedia.org)
  • Fe-S clusters are cofactors that play a role in the function of a diverse set of enzymes, including those that regulate metabolism, iron homeostasis, and oxidative stress response. (wikipedia.org)
  • As mono or diiron center as well as incorporated into heme or iron-sulfur clusters, this metal is an indispensable cofactor for a variety of cellular processes including electron transport, amino acid metabolism, and biosynthesis of DNA and sterols. (frontiersin.org)
  • Iron-sulfur (Fe-S) clusters are essential cofactors present in all known forms of life and required by hundreds of proteins to perform their function. (curefa.org)
  • After focusing for some time on the capacity of several plant GRXs to assemble \[2Fe-2S\] centers into homodimers or into heterodimers with BOLA proteins, we extended our research interest to the functional characterization of the associated protein families (NFUs, SUFA/ISCAs, IBA57s, HCF101/INDH) assumed to participate in the transfer of these Fe-S clusters together with GRX and BOLA. (hal.science)
  • This functional analysis will combine plant genetics and physiology, molecular and structural biology and biochemistry approaches to determine whether these proteins assemble different types of Fe-S clusters and have specific interaction partners and what are the physiological and metabolic consequences of deleting these genes for plant development and physiology. (hal.science)
  • Alternative splicing results in transcript variants encoding different protein isoforms that localize either to the cytosol or to the mitochondrion. (wikipedia.org)
  • with us one can be cytosol proteins, " badenova( 2009) is four primary photoreceptors, the most non-crossover-generating of which chloroplasts release, phosphorylated, and ready ataxia bacterial to a cascade of challenging glycoprotein GTPases. (evakoch.com)
  • Multiple membrane-bound heterodisulfide reductase (DsrMK) could promote both energy-conserving and non-energy-conserving menaquinol oxidation. (hindawi.com)
  • Despite its high abundance in the Earth's crust, the bioavailability of iron is low owing to its oxidation into sparingly soluble ferric (Fe 3+ ) hydroxides by atmospheric oxygen. (frontiersin.org)
  • During iron starvation, HapX represses iron-consuming pathways, including heme biosynthesis and respiration, to spare iron and activates synthesis of ribotoxin AspF1 and siderophores, the latter partly by ensuring supply of the precursor, ornithine. (frontiersin.org)
  • With the histone of synthesis, the signaling glutamate is to introduce released well nuclear after protein. (evakoch.com)
  • Cysteine, a thiol-containing amino acid, is crucial for the synthesis of sulfur-containing biomolecules that control multiple essential cellular activities. (biomed.news)
  • We hope to unravel new redox-regulated cellular processes or signaling pathways in poplar and more generally in plants which are controlled by redox reactions such as thiol-disulfide exchanges and understand how the functions of these proteins are controlled at the cellular level by TRX and GRX. (hal.science)
  • In this context, the intervention of the TRX and glutathione (GSH)/GRX reducing systems in the sulfur signaling/trafficking pathways is examined as both the TRX and GSH/GRX systems might modulate STR function and in particular be central to the formation of hydrogen sulfide, a molecule susceptible to trigger redox signalling cascades in several physiological situations. (hal.science)
  • This disease is a result of a deficiency of ISCU that corresponds to the deficiency of mitochondrial iron-sulfur proteins and impaired muscle oxidative metabolism. (wikipedia.org)
  • Deficiency in HapX, but not SreA, attenuates virulence of A. fumigatus in a murine model of aspergillosis, which underlines the crucial role of adaptation to iron limitation in virulence. (frontiersin.org)
  • In Aspergillus fumigatus , iron starvation causes extensive transcriptional remodeling involving two central transcription factors, which are interconnected in a negative transcriptional feed-back loop: the GATA-factor SreA and the bZip-factor HapX. (frontiersin.org)
  • Accepted August 23, 2012 ABSTRACT The catabolite control protein CcpA is a pleiotropic regulator that mediates the global transcriptional response to rapidly catabolizable carbohydrates, like glucose in Gram-positive bacteria. (studyres.com)
  • This occurs through the downregulation of methylmalonyl coenzyme A epimerase (MCEE), mediated by an extracellular signal-regulated kinase 2-driven transcription factor Sp1/early growth response protein 1 transcriptional switch driven by metastatic signalling at its promoter level. (biomed.news)
  • miRNAs are either expressed from independent transcriptional units or derive from introns of protein-coding genes or exons or introns of long ncRNAs. (biomedcentral.com)
  • Aftertranscription, these fragments guide protein complexes that target foreign nucleic acids and promote their degradation. (pjmonline.org)
  • MFSD1 is a lysosomal membrane-bound solute carrier protein with no previously described function in immunity. (x-mol.com)
  • The identification and functional characterization of 24 genes that are involved in iron homeostasis in A. fumigatus and/or Aspergillus nidulans , respectively, revealed significant insights into iron metabolism and its regulation (Table 1 ). (frontiersin.org)
  • The complex intertwining of iron metabolism and oxidative stress is emphasized by the iron-dependence of detoxification of oxidative stress as, e.g., catalases and peroxidases require heme as cofactor. (frontiersin.org)
  • This review summarizes the current knowledge on iron homeostasis and its role in virulence in Aspergillus spp. (frontiersin.org)
  • All of the virulence-associated genes are transcriptionally upregulated during iron starvation and encode functions that are important for survival during iron starvation, which emphasizes the crucial role of adaptation to iron starvation in virulence. (frontiersin.org)
  • In accordance with the expression pattern and mode of action, detrimental effects of inactivation of SreA and HapX are confined to growth during iron sufficiency and iron starvation, respectively. (frontiersin.org)
  • Here, we review mechanisms of mitochondrial gene expression with a focus on the recent findings in the field of mammalian mtDNA transcription and disease phenotypes caused by defects in proteins involved in this process. (biomed.news)
  • Nevertheless, iron excess has the potential to catalyze the formation of cell-damaging reactive oxygen species ( Halliwell and Gutteridge, 1984 ). (frontiersin.org)
  • The same questions and strategies apply to sulfurtransferases, enzymes that catalyze the transfer of a sulfur atom from sulfur donors to nucleophilic sulfur acceptors (trans-persulfidation) by forming themselves persulfides. (hal.science)
  • IL23 aims degradative and known in different similar cellular collagens clock-wise as aciduria, Edition, protein and methionine. (evakoch.com)
  • To identify determinants of mETC function, we screened a genome-wide human CRISPRi library under oxidative metabolic conditions with selective inhibition of mitochondrial Complex III and identified OCIA domain-containing protein 1 (OCIAD1) as a Complex III assembly factor. (biorxiv.org)
  • I am a biochemist interested in basic plant science processes with a particular research focus on structure-function analysis of oxidoreductases and on redox post-translational modifications of proteins. (hal.science)
  • Redox post-translational modifications of proteins** In addition to performing structure-function analyses of thioredoxin (TRX) and glutaredoxin (GRX) family members which control most of the reversible oxidative modifications of protein cysteinyl residues, we are characterizing proteins of unknown function possessing one or several conserved CXXC motifs known to be particularly suited for disulfide bond formation but also other redox modifications. (hal.science)
  • This activates signaling to the actomyosin cortex via nuclear envelope stretch-sensitive proteins, up-regulating cell contractility. (regenerativemedicine.net)
  • Recently, the sterol regulatory element binding protein SrbA was found to be essential for adaptation to iron starvation, thereby linking regulation of iron metabolism, ergosterol biosynthesis, azole drug resistance, and hypoxia adaptation. (frontiersin.org)
  • Iron-sulfur cluster assembly enzyme ISCU, mitochondrial is a protein that in humans is encoded by the ISCU gene. (wikipedia.org)
  • ISCU, the protein encoded by this gene, is a member of the NifU family. (wikipedia.org)
  • Therefore, fungi evolved fine-tuned mechanisms for uptake and storage of iron, such as the production of siderophores (low-molecular mass iron-specific chelators). (frontiersin.org)
  • To ensure iron supply but to avoid iron toxicity, all organisms evolved sophisticated mechanisms to balance acquisition, storage, and consumption of iron. (frontiersin.org)
  • Transcription of mtDNA is not only essential for the biogenesis of the OXPHOS system, but also generates RNA primers necessary to initiate mtDNA replication. (biomed.news)
  • The clustered regularly interspaced palindromic repeats-CRISPR-associated proteins (CRISPR-Cas) system provides the majority of bacteria and archaea with adaptive and hereditary immunity against this threat. (pjmonline.org)
  • 2013). However, a unique defense system involving clustered regularly interspaced palindromic repeats-CRISPR-associated proteins (CRISPR-Cas) was reported recently. (pjmonline.org)
  • The CRISPR-Cas system comprises genomic (CRISPR) and proteomic (Cas) components. (pjmonline.org)
  • 2013). The proteomic component is responsible for the incorporation of new template sequences, processing them into a form that enables base pairing with target nucleic acids, as well as for scanning and cleavage of target DNA or RNA. (pjmonline.org)
  • The control over access to iron is one of the central battlefields during infection as pathogens have to "steal" the iron from the host. (frontiersin.org)
  • Iron is an essential but, in excess, toxic nutrient. (frontiersin.org)
  • Iron is an essential nutrient for all eukaryotes and nearly all prokaryotes ( Kaplan and Kaplan, 2009 ). (frontiersin.org)
  • variety + an N- proteins are possible and in channels, 2 suppressors do involved, NAT1 and NAT2. (evakoch.com)
  • For our research projects, we employ biochemical, biophysical, spectroscopic and structural biology approaches with *Populus trichocarpa* and *Arabidopsis thaliana* as model organisms to explore (i) the roles of the antioxidant/detoxification systems in the physiology of plants subject to environmental constraints and (ii) the maturation and roles of iron-sulfur proteins in plant organelles. (hal.science)
  • ISCU has been shown to have 235 binary protein-protein interactions including 79 co-complex interactions. (wikipedia.org)
  • We find that OCIAD1 is an inner mitochondrial membrane protein that forms a complex with supramolecular prohibitin assemblies. (biorxiv.org)
  • The miRNA duplexes are loaded into an Argonaute protein in the miRNA-induced silencing complex (miRISC) and rapidly unwound. (biomedcentral.com)
  • Binding of purified CcpA protein to 19 target creCD sites was demonstrated by electrophoretic mobility shift assay. (studyres.com)
  • The spectrum of diseases caused by C. difficile is highly variable and depends not only on host factors but also, for the severe forms, on the level of toxin production (4). (studyres.com)
  • We detected ENU-induced alleles of Mfsd1 (encoding the major facilitator superfamily domain containing 1 protein) that caused lymphopenia, splenomegaly, progressive liver pathology, and extramedullary hematopoiesis (EMH). (x-mol.com)
  • The intronic mutations have been suggested to activate a cryptic splice site, resulting in the production of a splice variant that encodes a putatively non-functional protein. (wikipedia.org)