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Sulfhydryl and Disulfide Groups of Proteins
     

Sulfhydryl and Disulfide Groups of Proteins

by Yu M. Torchinskii
 

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(Written for the original Russian edition) Out of all the functional groups of protein molecules that be­ long to the side chains of amino acid residues, the sulfhydryl or thiol (SH) groups of cysteine residues and the disulfide (S-S) groups of cystine have for long attracted particular attention from chemists and biochemists. This is due, on the one hand, to the

Overview

(Written for the original Russian edition) Out of all the functional groups of protein molecules that be­ long to the side chains of amino acid residues, the sulfhydryl or thiol (SH) groups of cysteine residues and the disulfide (S-S) groups of cystine have for long attracted particular attention from chemists and biochemists. This is due, on the one hand, to the high chemical reactivity of these groups, which enter into many, and often very characteristic and selective, reactions with several types of compound. On the other hand, this attention is connected with the great significance of SH and S-S groups for the specific functions of a number of enzymes, hormones, and other biological­ ly active proteins, and consequently for the normal course of many physiological processes. The varied functions of sulfhydryl and disulfide groups in en­ zymes are particularly interesting; their role can consist of bind­ ing substrates and cofactors, in direct participation in the catalytic act, or in maintaining (in ways not so far sufficiently studied) the native, catalytically active conformation of the protein. It is entirely natural that the detailed study of the chemical behavior and biological role of these sulfur-containing groups in proteins (and in such low-molecular cofactors as glutathione, co­ enzyme A, lipoiC acid, etc. ) has, in addition to its academic, gen­ eral biological interest, great Significance for many applied branches of medicine and biology (toxicology, radiobiology, diagnostics and therapeutics, biochemical engineering, plant growing, etc. ).

Product Details

ISBN-13:
9781475701296
Publisher:
Springer US
Publication date:
04/30/2014
Series:
Studies in Soviet Science Series
Edition description:
Softcover reprint of the original 1st ed. 1974
Pages:
275
Product dimensions:
5.98(w) x 9.02(h) x 0.02(d)

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