Cys to ser mutations

Author: mahe

August undefined, 2024

WebMar 1, 2002 · Request PDF Structure of a Cys25 -> Ser mutant of human cathepsin S Cathepsin S (EC 3.4.22.27), a cysteine proteinase of the papain superfamily, plays a critical role in the generation of a ... WebSep 9, 2009 · Effect of combinatorial Cys-to-Ser mutations on p53 activity. One explanation for continued thioredoxin reductase dependence of p53 alleles carrying single Cys-to-Ser mutations was that more than a single cysteine or pair of cysteines was prone to oxidation. To test this idea, a series of p53 alleles was constructed comprising all pair …

Spectroscopic and computational investigation of three …

WebDec 28, 2001 · Cys-67 of HLA-B27 is located in the B pocket, which determines peptide-binding specificity. We analyzed effects of the Cys-67 → Ser mutation on cell surface expression, peptide specificity, and T-cell recognition of HLA-B*2705. Surface expression was assessed with antibodies recognizing either native or unfolded HLA proteins. WebJun 6, 2000 · The enzymatic activity of Cys to Ser mutants of bovine MsrA Activity of 100% represents 580 and 1,250 pmol of N -Ac- l - [ 3 H]Met produced in the DTT and thioredoxin assays, respectively. Each value represents the average of three independent measurements at two enzyme concentrations (SD range 5–10%). small bowel obstruction and perforation

Cysteine-to-Serine Mutants of the Human Copper Chaperone for Superoxide ...

WebNov 15, 1996 · In the present work, we investigated the effect of these Cys-to-Ser mutations on the sensitivity of the enzyme to inhibition by cyclooxygenase inhibitors, the ability of the enzyme to form homodimers, the extent of glycosylation of the enzyme, and the sensitivity of the enzyme to maleimide enzyme inhibitors. WebThe gL–Cys-144–Ser mutation completely abolishes the covalent interaction between gO and gH/gL. (C) Pentamer complexes purified by Strep affinity (Strep-tagged gH) showed that mutation of gL–Cys-144–Ser or UL128–Cys-162–Ser interferes with the covalent interaction between gL and UL128. http://dpuadweb.depauw.edu/$1~cfornari/DISGEN/Site/gmut.htm solvay plastics

Frontiers How to Inactivate Human Ubiquitin E3 Ligases by Mutation …

Conservative and nonconservative mutations in proteins

WebMar 31, 2024 · Subsequent structural studies have shown that the hydroxyl group of Ser-17 contributes to the binding of Mg 2+ associated with bound nucleotide. In this report, we show that more subtle amino acid substitutions at this site that would be expected to interfere with complexing Mg 2+, such as Cys or Ala, also generated dominant inhibitory mutants ... WebNov 15, 1996 · Previous studies have demonstrated that mutation in prostaglandin endoperoxide synthase-1 of Cys313 or Cys540 to Ser residues reduces … small bowel obstruction care planWebCys to Ser mutagenesis was used to investigate the Cu binding in more detail. Single Cys to Ser mutations, as represented by C22S and C244S, did little to affect the metal … solvay school

"WebFeb 1, 2024 · Mutation and recombination are two major genetic mechanisms that drive the evolution of viruses. They both exert an interplay during virus evolution, in which mutations provide a first ancestral source of genetic diversity for subsequent recombination. ... SARS-CoV-2 RBD CtoS with two Cys to Ser mutations to remove the SS4 in RBML2; (3) … " - Cys to ser mutations

Cys to ser mutations

Mutations in the thioredoxin sites of protein disulfide …

WebIf a cysteine is on the surface of the protein, in contact with water, Ser is usually a well-tolerated substitution, although it may occasionally allow for unexpected post-translational... WebQualitative results from these studies indicate that for the Ser130-->Cys mutation the large decrease in binding affinity is in part caused by steric effects, but also significantly by the differential work required to polarize the Cys thiol group relative to the Ser hydroxyl group.

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WebFeb 20, 2024 · Here, we demonstrate that mutation of a ubiquitously conserved second-shell Phe (F393) to His or Ala, provides complementary increases in the P450 heme … WebAmino acid replacement is a change from one amino acid to a different amino acid in a protein due to point mutation in the corresponding DNA sequence. ... Cys Ser Thr Pro Ala Gly Asn Asp Glu Gln His Arg Lys Met Ile Leu Val Phe Tyr Trp Ex src: Cys . 258 121 201 334 288 109 109 270 383 258 306 252 169 109 347 89 349 349 139

WebWe generated a strain of Saccharomyces cerevisiae in which the sole source of alpha-tubulin protein has a cys-to-ser mutation at cys-377, and then we examined microtubule morphology and nuclear positioning through the cell cycle. During G1 of the cell cycle, microtubules in the C377S alpha-tubulin ( … WebWhereas a great number of mutations located in the coding regions of genes have been described, genetic defects involving regulatory elements (cis-) or diffusible effectors …

Webdouble Cys to Ser mutations at the N-terminal or C-terminal redox center, respectively, and N,C,-PDI contains all four Cys to Ser changes. In support of previous reports, we find that the thioredoxin-like centers contribute most of the isomerase ac- tivity and that the two sites can function independently in that ... WebThe Cys-to-Ser mutation resulted in weaker binding of cystatin B to all four proteinases examined, the effect varying with both the proteinase and the species variant of the inhibitor.

WebNov 15, 1996 · Cysteine (Cys) residues at PDI active sites could be targets for NO 2 AA- nitroalkylation regulating PDI activity which could explain our previous observation. PDI …

WebJul 7, 2024 · The Trx–NHL interface harbours key residues for qH regulation. By generating a SOQ1-LD mutated form (hereafter referred to as SOQ1-LD(M)), with three Cys-to-Ser mutations in the redox motif of ... solvayschools.orgWebaccompanying the Ser130 to Cys mutation is attributable to steric effects. Cysteine is larg-er and has different geometries than serine. The atomic radius of sulfur is 0.4 A larger … small bowel obstruction cleveland clinicWebIn this study, we have employed a combined spectroscopic and computational approach to characterize three Cys-to-Ser (Cys --> Ser) mutants (C2S, C6S, and C2S/C6S NiSOD). … solvay schools alumniWebFrom FEP calculations of swap mutations and double mutants, we determine that several mutations of residue Tyr6 at site p6 in the X-idiotype peptide can improve binding affinity. More specifically, mutation of Tyr6 to Val, Cys, and Ile results in large gains in HLA binding affinity as computed from FEP. small bowel obstruction causeWebJul 25, 2003 · The Cys can be divided into 3 classes based on their potential to form intramolecular or intermolecular disulfide bonds and their effect on retinoschisin structure. One class consists of 4 Cys (Cys-63, Cys-110, Cys-142, and Cys-219) in the discoidin domain that are essential for proper folding and efficient protein secretion. small bowel obstruction client educationWebA mutation is any detectable and heritable change in the genetic material. In order to understand the effects of mutations, it is important to understand how DNA codes for specific amino acids. DNA is read in triplet codons, … solvay shopWebSep 1, 2004 · Cys to Ser mutations for either Cys-822, positioned in the catalytic loop, or Cys-940, located in the C-terminal kinase subdomain, significantly reduced the activities of autophosphorylation and phosphorylation towards exogenous substrates. solvay school district calendar