Presence of monovalent cations. Medical search. Frequent questions

Using in vitro chemical cross-linking, we found yeast TBP (yTBP) to be largely monomeric in the presence of the divalent cation Mg 2+ , even at high salt concentrations. (ias.ac.in)
The distributional patterns of microbial genes suggested Dead Sea community trends in mono- and divalent cation metabolisms as well as in transposable elements. (nature.com)
Relationships between bile salt and divalent cation concentration indicate that 1 mumol of secreted biliary deoxycholate, the most hydrophobic bile salt, associates with the greatest amount of calcium (0.046 mumol) and magnesium (0.022 mumol), followed by chenodeoxycholate (0.020 and 0.010 mumol, respectively) and cholate (0.012 and 0.008 mumol, respectively). (unimore.it)

Lowering the monovalent ionic concentration in the absence of Mg 2+ , resulted in dimerization of TBP. (ias.ac.in)
The dependence of monovalent-ion selectivity of surface-sulfonated anion exchange membranes (s-AEMs) on the electrodialysis (ED) desalination current density, the concentration of equimolar ternary electrolyte (XCl + X2SO4) in the total concentration range 0.04-0.2 M, and the type of cations (X = H, Cs, Na) has been studied. (hse.ru)
The tonoplast H+-PPiase showed an absolute requirement for a monovalent cation and exhibited hyperbolic kinetics with respect to cation concentration. (ox.ac.uk)
When assayed in the presence of 50 millimolar KCl at fixed PPi concentrations, H+-PPiase activity showed sigmoidal kinetics with respect to total Mg concentration, reflecting a requirement for a Mg/PPi complex as substrate and free Mg2+ for activation. (ox.ac.uk)
Increasing the concentration of monovalent cations, such as Na + , up to 1-2 M stabilizes oligos. (idtdna.com)
Whereas biliary concentration of divalent cations differed depending on the structure and concentration of the infused bile salt, the concentration of monovalent cations was constant for any species and concentration of infused bile salt. (unimore.it)

EMD 56133 did not interfere with transport systems for monovalent organic cations, amino acids and long chain fatty acids. (nih.gov)
Several substrates of other endogenous transport systems (e.g. bilirubin, cyclopeptides, monovalent cations, dipeptides, amino acids, fatty acids, hexoses) did not interfere with the transport of EMD 56133. (nih.gov)
Here we have studied the interaction of the carrier with various amino acids in the presence of Na + , K + , Li + and guanidinium ion. (uandes.cl)
Thus, in the presence of guanidinium, the carrier discriminates sharply among different neutral amino acids. (uandes.cl)

The reactivity of these interfaces is strongly impacted by the presence of ions. (temple.edu)
This is achieved by measuring the changes in the structure and vibrational dynamics of interfacial water induced by the presence of ions in close vicinity to the mineral surface. (temple.edu)
By tracking the accumulation of ions at the interface via the vSFG response, we can characterize the unique surface arrangements of interfacial water molecules induced by a range of monovalent and divalent cations at the alpha-Al2O3(0001)/water interface. (temple.edu)
It was shown that myometrium mitochondria, in the presence of АТР and MgCl 2 in the incubation medium, accumulate Са ions in the matrix. (ukrbiochemjournal.org)
Using all-atom molecular dynamics simulations, we model a monovalent salt species (KCL) at high concentrations (0.1-3 m ) and calculate the equilibrium distributions of water and ions around a small tetraloop-forming RNA oligomer in a variety of structural arrangements: folded A-RNA (canonical) and Z-RNA (non-canonical) tetraloops and unfolded configurations. (aip.org)
We find that cation accumulation is highest around non-canonical Z-RNA configurations at concentrations below 0.5 m , while unfolded configurations accumulate the most co-ions in all concentrations. (aip.org)
Corrosive electrochemical processes that affect different alloys in the presence of saliva lead to the dissociation of metal ions resulting in various biological effects [ 1. Niedermeier W. Oraler Galvanismus-Ursachen und Folgen. ZWR Das Dtsch Zahnärzteblatt. 2015; 124: 578-584. [ CrossRef ] ">1 ]. (lidsen.com)
Hg (II) extraction in a PEG-based aqueous two-phase system in the presence of halide ions. (edu.pl)

The presence of tourmaline and/or lepidolite throughout these dikes suggests that although the melts were initially H 2 O-Undersaturated, high melt concentrations of incompatible (or fluxing) components such as B, F, and Li (±H 2 O), aided in the development of large pegmatitic crystals that grew rapidly in the short times suggested by the conductive cooling models. (degruyter.com)
Effect of Mg 2+ was seen at two different levels: at higher TBP concentrations, it suppressed the TBP dimerization and at lower TBP levels, it helped keep TBP monomers in active conformation (competent for binding TATA box), resulting in enhanced TBP-TATA complex formation in the presence of increasing Mg 2+ . (ias.ac.in)
In the present study, the NP size resulting from the thermal reduction of the precursors H 2 PtCl 6 , H 2 Pt(OH) 6 , or Pt(acac) 2 in presence of the bases NaOH or Na(acac) at different concentrations is studied. (mdpi.com)
The concentrations of monovalent (sodium, potassium), divalent (magnesium), and polyvalent cations affect the stability of hybridized oligonucleotides [ 3,4 ]. (idtdna.com)
Our findings show that all-atom molecular dynamics can describe the equilibrium distributions of monovalent salt in the presence of small RNA oligomers at KCL concentrations where ion correlation effects become important. (aip.org)
Naturally occurring polyelectrolytes, such as nucleic acids, accumulate high concentrations of monovalent ion species as a means of screening the strong electronegative charge of their sugar-phosphate backbones and allowing the molecule to adopt secondary structures or form backbone-backbone interactions. (aip.org)

Time resolved vSFG measurements reveal that the O-H vibrational lifetime (T1) of interfacial species at pH 10 conditions in the presence of NaCl and BaCl2 remains similar, but restructuring of the surface seen in steady state vSFG is manifested in the degree to which strongly hydrogen bonded species recover to their original populations post excitation. (temple.edu)
The presence of divalent cations diminished the effectiveness of the procedure as opposed to monovalent cations and species with amphoteric behavior such as bicarbonate. (itba.edu.ar)
In water solutions, this substance is present as a monovalent anion, ascorbate- (Asc-), which easily donates electrons to oxidized molecules and scavenges reactive oxygen species (ROS). (deepdyve.com)

The fourth chapter investigates how monovalent or divalent cations accumulate at alpha-Al2O3(0001)/H2O interfaces and reorganize the interfacial solvent structure. (temple.edu)

Consequences of heating under alkaline pH alone or in the presence of maltodextrin on solubility, emulsifying and foaming properties of faba bean protein," Food Hydrocoll . (ugm.ac.id)
The results indicated that the solubility of zirconium dioxide was not significantly affected by the presence of an electric field, although the solubility was higher when the pH was relatively lower. (lidsen.com)
The rosins and divalent salts have low solubility, whilst the monovalent salts are highly soluble in water. (europa.eu)

G-quadruplexes are secondary semi-stable folded structures found in our DNA and RNA which tend to assemble around guanine-rich sequences in the presence of cation molecules like potassium. (anti-agingfirewalls.com)

We also examine the assembly of PAA-AuNPs in the presence of a positively charged Langmuir monolayer that promotes the attraction of the negatively charged capped NPs by electrostatic forces. (osti.gov)
The new paradigm or exception to this rule is that multiple guanine nucleotides also spontaneously form a "tetraplex" with a positively charged cation, such as potassium, forming what is referred to as a "Guanine Qaudruplex", or "G-quadruplex" for short. (anti-agingfirewalls.com)

Whereas different bile salts seem to influence the secretion of sodium and potassium mainly by virtue of their choleretic properties, the effect of bile salt structure on biliary secretion of calcium and magnesium suggests the presence of a secretory link that might be consistent with cation-bile salt binding. (unimore.it)

Incubation of mitochondria in the presence of СССР inhibited cation accumulation, but did not cease it. (ukrbiochemjournal.org)

With HypoPP hyperpolarization-activated cation leak counteracting K + -rectifying current, mutations cause outermost arginine or lysine substitution. (medscape.com)

Their activity is strictly dependent on the presence of a nucleotide-based cofactor bound to a conserved region called beta-alpha-beta core. (edu.pl)

Our results suggest that transport systems for bivalent organic cations or uncharged compounds (ouabain) are able to eliminate the linear hydrophilic peptide tested. (nih.gov)
Oligomeric monomers are produced by reaction of a bisphenol compound with ther a dihalobenzophenone or a (2, 2) bis (4-halophenyl) hexafluoropropane and any other activated halogen containing aromatic compounds in the presence of a base and an appropriate solvent. (justia.com)
The molecular weight and salt cations of these compounds differ and, therefore, some differences in physico-chemical properties are expected. (europa.eu)

Ready biodegradation studies are available for a number of different category members, covering rosin, monovalent and divalent salts of rosin and hydrogenated variants. (europa.eu)
Acute ecotoxicity results are available for members of the rosin and rosin salts category, covering rosin, monovalent and divalent salts of rosin and hydrogenated variants. (europa.eu)
In addition to the rosin component of the substances, for the salts within the category environmental toxicity may also be affected by the cation (Na, K, Ca, Mg, Zn, Mn or Al). (europa.eu)
The two 7 beta-hydroxylated bile salts induced greater cation secretion than did their 7 alpha-epimers. (unimore.it)

Pseudohalides such as thiocyanate (SCN - ), hexafluorophosphate (PF6 − ), and monovalent anions such as nitrate (NO 3 - ), chlorate (ClO 3 - ), perchlorate (ClO 4 - ), and perrhenate (ReO 4 - ) are also substrates and block iodide translocation by competition for the iodide binding and transport site of NIS [6,10]. (solvobiotech.com)
Permanent hardness is caused by multivalent cations (usually with charge +2) such as calcium as well as magnesium, as well as anions such as sulfate as well as chloride. (phdnest.com)

Owing to the extreme salinity ( ∼ 10 times saltier than the oceans), near toxic magnesium levels ( ∼ 2.0 M Mg 2+ ), the dominance of divalent cations, acidic pH (6.0) and high-absorbed radiation flux rates, the Dead Sea represents a unique and harsh ecosystem. (nature.com)

Experimental data on cation binding in PC bilayers mixed with of negatively charged PG and PS lipids is shown in Fig. 6. (blogspot.com)
I believe that an MD simulation model correctly reproducing the cation binding in negatively charged lipids could further sharpen this interpretation. (blogspot.com)

Preliminary incubation of mitochondria with 100 µМ Са 2+ , before adding trifluoperazine to the incubation medium, partly prevented influence of the latter on the cation level in the matrix. (ukrbiochemjournal.org)

The water-soluble DNA partitions into the aqueous phase, while the proteins denature in the presence of organic solvents, thus staying in the organic phase. (bitesizebio.com)

H+-PPiase activity was maximal in the presence of K+ (K50 approximately 3 millimolar), with PPi-dependent H+ transport being more selective for K+ than PPi hydrolysis. (ox.ac.uk)
Divalent cations have the biggest impact on T m -changes in the millimolar range are significant. (idtdna.com)

South-east Asian ovalocytosis (SAO) results from the heterozygous presence of an abnormal band 3, which causes several alterations in the properties of the erythrocytes. (houstonmethodist.org)

These oligomers, in the presence or absence of an curing agent, may then be heated to form high temperature thermosetting polymers. (justia.com)
Monovalent salt solutions have strongly coupled interactions with biopolymers, from large polyelectrolytes to small RNA oligomers. (aip.org)

In contrast, the uncharged compound ouabain (Ki = 200 microM) and the bivalent organic cation d-tubocurarine (Ki = 370 microM) competitively inhibited the uptake of the renin inhibitor. (nih.gov)

the large (L) segment en- severity of disease caused by DOBV-Ap infections is more codes viral RNA-dependent RNA polymerase, the medium often moderate to severe. (cdc.gov)
This leads to an interfacial region that is structured in a cation valence dependent manner. (temple.edu)
It is known that Са 2+ -dependent regulation of this cation exchange in mitochondria is carried out with participation of calmodulin. (ukrbiochemjournal.org)

Heat can affect their coming and going, and their presence near promoter elements can block gene activation. (anti-agingfirewalls.com)
Using vibrational sum frequency generation (vSFG) in the frequency and time domain, we investigate how monovalent and divalent cations affect the hydrogen bonding environment of the first few layers of interfacial water next to an alpha-Al2O3(0001) surface. (temple.edu)

However, most of the time, when the Dead Sea level is declining and halite is precipitating from the water column, it is difficult to reliably measure the presence of microorganisms and their activities. (nature.com)
Although many halophilic and halotolerant microorganisms are known to inhabit NaCl-dominated ('thalassohaline') brines up to halite saturation, only a few organisms can live in the Dead Sea's 'athalassohaline' environment, dominated by divalent cations. (nature.com)

The identification of these proteins as members of the CPA2 family reveals that monovalent cation transport is required for Bacillus spore formation and germination. (wikipedia.org)

The amine or alcohol is reacted with carbon dioxide in a suitable solvent system and in the presence of an amidine or guanidine base, to form the ammonium carbamate or carbonate salt which is then reacted in a polar aprotic solvent with a hydrocarbyl halide. (justia.com)
Deoxycholate stimulated the greatest increase in cation secretion per unit increase in bile salt output, followed by chenodeoxycholate and cholate. (unimore.it)

When stacked the tetrads form a central cavity formed from guanine O6 atoms, where they can interact with metal cations. (nature.com)
This study investigated the simultaneous application of chitosan and metal cations as dual-conditioners to improve sludge dewaterability. (iwaponline.com)
Dual-conditioning using chitosan and metal cations further enhanced dewaterability. (iwaponline.com)
This study further investigates the potential of dual-conditioning of sludge using the non-toxic and biodegradable biopolymer chitosan to replace synthetic polymers, together with some cheaper metal cations as an economical and eco-friendly dewatering alternative. (iwaponline.com)
We have demonstrated that 100 µM thiacalix[4]arene-tetrasulphonate (C-798) recovered to the control level of ATPase activity of myosin subfragment-1 in the presence of heavy metal cations. (ukrbiochemjournal.org)
elevation, while cation channel blockers, free radical scavengers, low extracellular [Ca2+], transition metal chelators, and removal of the cell wall inhibit this reaction. (deepdyve.com)

Monitoring the imbibition of both deionized water (DW) and seawater (SW) into initially oil-wet Austin chalk showed that water imbibed into the rock faster when heated in the presence of a magnetic field. (imperial.ac.uk)
For example, in the presence of 0.20 M Na+ and 0.56 M Rb+ at 4 °C, the ApT site in the minor groove is occupied by a Rb+ ion, a Na+ ion, or a water molecule 40, 10, and 50% of the time, respectively. (lu.se)

At both the levels, activity of the full-length TBP in the presence of Mg 2+ was like that reported for the truncated C-terminal domain of TBP from which the N-terminus is removed. (ias.ac.in)
Rounding out the upper glycolysis pathway, the identity of the fructose-1,6-bisphosphate aldolase in the genome was verified and reported to have substantial activity with fructose-1,6-bisphosphate, in the presence of the divalent ion, Zn 2+ . (biomedcentral.com)
It cannot be driven by H + and shows very low activity (10-20%) in the presence of Li + [2]. (solvobiotech.com)

Allograft function monovalent cation: development program. (myjuicecup.com)

Because many rash illnesses may mimic rubella infection, and because many rubella infections are unrecognized, the only reliable evidence of immunity to rubella is the presence of specific antibody. (cdc.gov)

In NMRlipids I and II projects, the goal was to find a MD model that would correctly reproduce NMR data (for lipid headgroup & glycerol backbone structures, and for cation binding) in PC bilayers. (blogspot.com)

Although first observed in the 19th century, their structures were not identified until in the 1960s and their presence and fuller relevance in the human genome only clarified in the last few years. (anti-agingfirewalls.com)
Specific point mutations in human anion exchanger 1 (AE1) convert this electroneutral anion exchanger into a monovalent cation conductance. (tcdb.org)

Formation of directional protons gradient in the matrix of mitochondria causes antyporte release of Ca 2+ , which has been previously accumulated in energetic processes (in the presence of Mg-ATP and succinate). (ukrbiochemjournal.org)

Cations may have significant effects on sludge conditioning by neutralization of negative surface charges, bridging of floc components, and the salting out effect, leading to improved dewaterability when used in conjunction with chitosan. (iwaponline.com)

Activation of the KefB or KefC K+ efflux system only occurs in the presence of glutathione and a reactive electrophile such as methylglyoxal or N-ethylmaleimide. (wikipedia.org)
In agreement with the prediction, the specificity of system y + L was altered by the monovalent cations. (uandes.cl)

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