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cysteine

   Also found in: Medical, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
cys·te·ine  (sst-n, -n, -t-)
n.
An amino acid, C3H7O2NS, derived from cystine and found in most proteins.

[Alteration of cystine.]

cysteine [ˈsɪstɪˌiːn -ɪn]
n
(Life Sciences & Allied Applications / Biochemistry) a sulphur-containing amino acid, present in proteins, that oxidizes on exposure to air to form cystine. Formula: HSCH2CH(NH2)COOH
[variant of cystine]
cysteinic  adj

cysteine  (sst-n)
A nonessential amino acid. Chemical formula: C3H7NO2S. See more at amino acid.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.cysteine - an amino acid containing sulfur that is found in most proteins; oxidizes on exposure to air to form cystine
amino acid, aminoalkanoic acid - organic compounds containing an amino group and a carboxylic acid group; "proteins are composed of various proportions of about 20 common amino acids"


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? Mentioned in ? References in periodicals archive
 
K11777 deactivates enzymes called cysteine proteases, which a schistosome needs to digest proteins drawn from human blood.
Their primary structure includes four conserved cysteine residues, and they are categorized into four subfamilies known as CXC, CC, C, and CX3C according to the positions of the first two cysteine residues.
The enzyme in the resistant strains is called Mir1-CP or maize insect resistance cysteine protease.
 
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