cystine – מילון אנגלי-עברי
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Cystine
Cystine is the
amino acid with the
formula (SCH
2CH(NH
2)CO
2H)
2. It is a white solid that is slightly soluble in water. Each molecule of cystine is made from two molecules of cysteine, another sulfur-containing amino acid that, as its name suggests, is very similar to cystine, with which it can be interconverted. It serves two biological functions, a site of redox reactions and a mechanical linkage that allows proteins to retain their
3-dimensional structure. It is a nonessential amino acid, which means that the human body can synthesize it.
cystine
Noun
1. a crystalline amino acid found in proteins (especially keratin); discovered in bladder stones
(hypernym) amino acid, aminoalkanoic acid
Cystine
(n.)
A white crystalline substance, C3H7NSO2, containing sulphur, occuring as a constituent of certain rare urinary calculi, and occasionally found as a sediment in urine.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
cystine (dicysteine)
di-(
-amino-ß-thiopropionic acid). Compare with
cysteine .A naturally occuring amino acid with a disulfide bridge group on its side chain, formed by condensation of two
cysteine residues.
cystine
