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disulphide

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disulphide
disulphide Chem. (daɪˈsʌlfaɪd) [f. di-2 + sulphide.] A compound in which two atoms of sulphur are united with another element or a radical, as carbon disulphide, CS2. † Formerly, a compound having one atom of sulphur united to two of another element, as disulphide of copper = cuprous sulphide, Cu2S.... Oxford English Dictionary
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Tetraiodoethylene
Another synthesis involves mixing separate solutions of diiodoacetylene and iodine in carbon disulphide. Tetraiodoethylene would be left as a residue after carbon disulphide was evaporated. wikipedia.org
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What are the functions of disulphide bonds? What are the functions of disulphide bonds between amino acids in proteins or peptides?
enter image description here Disulphide bonds (or bridges) can also hold different subunits of larger protein complexes together, one example for this
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Fibroin
The heavy and light chains are linked by a disulphide bond, and P25 associates with disulphide-linked heavy and light chains by noncovalent interactions wikipedia.org
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Sclerotin
In some of the Apterygota, however, at least some of the cross-linking is by disulphide bonds reminiscent of protein cross-linking in the formation of Invertebrate connective tissue proteins based on disulphide links appear to be radically different. wikipedia.org
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Where do the electrons and protons formed from biological reactions go? In a reaction like disulphide bond formation protons and electrons are released. These particles are presumably damaging in high levels. What sys...
It shows the oxidation of a pair of thiols to create a disulphide. What is missing from this scheme is the accompanying oxidising agent.
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Pyridine nucleotide-disulphide oxidoreductase domain 1
Pyridine nucleotide-disulphide oxidoreductase domain 1 is a protein that in humans is encoded by the PYROXD1 gene. Function This gene encodes a nuclear-cytoplasmic pyridine nucleotide-disulphide reductase (PNDR). wikipedia.org
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Procedure of diagonal electrophoresis I am learning protein sequencing and it seems that diagonal electrophoresis is a common method in the identification of disulphide bonds (S-S) exist between polypeptides in a prot...
You probably don’t _need_ to oxidize the disulfide bonds rather than reduce them. Performic acid has some potential advantages: * The oxidation products can’t spontaneously reform a disulfide bond whereas the reduction products from a thiolate reductant can. * Oxidation by performic acid causes a si...
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Dc1a
Etymology and chemical structure Dc1a contains two β-sheets and one β-hairpin loop whereas the sheets are held together by four disulphide bonds. Three of these four disulphide bonds form a classical cysteine knot region (ICK). wikipedia.org
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Why is protein cyclisation desirable? There are a number of methods to "cyclize" an existing peptide: * Disulphide bond as described in Disulfide Bond Mimetics: Strategies and Challenges by Gori et al. * "Linchpi...
As described in the abstract of Synthetic Cross-linking of Peptides: Molecular Linchpins for Peptide Cyclization by Derda et al., protein cyclization improves: > resistance to proteolytic degradation and conformational stability. The latter property leads to an increase in binding potency and increa...
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Hsp33
Oxidizing conditions like H2O2 cause disulphide bonds to form in Hsp33, a process that leads to the activation of its chaperone function. wikipedia.org
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Carbon Disulphide-MSDS | PDF | Toxicity | Firefighting - Scribd
Product name : Carbon Disulphide. CAS-No. : 75-15-. 1.2 Relevant identified uses of the substance or mixture and uses advised against. Identified uses : Laboratory chemicals, Industrial & for professional use only. 1.3 Details of the supplier of the safety data sheet. Company : Central Drug House (P) Ltd. 7/28 Vardaan House.
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AGR3
AGR3 (Anterior gradient 3, protein disulphide isomerase family member) هوَ بروتين يُشَفر بواسطة جين AGR3 في الإنسان. wikipedia.org
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Antifungal protein family
members sharing a structure consisting of five antiparallel beta strands which are highly twisted creating a beta barrel stabilised by four internal disulphide wikipedia.org
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Cysteine-rich protein
Cysteine-rich proteins (also cysteine-rich peptide, CRP, disulphide-rich peptide) are small proteins that contain a large number of cysteines. Structure Disulphides In an oxidising environment cysteines cross-link to form disulphide bonds. wikipedia.org
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