cysteine


Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.
Related to cysteine: methionine, cytosine

cys·te·ine

 (sĭs′tə-ēn′, -ĭn, -tē-)
n.
An amino acid, C3H7O2NS, derived from cystine and found in most proteins.

[Alteration of cystine.]

cysteine

(ˈsɪstɪˌiːn; -ɪn)
n
(Biochemistry) a sulphur-containing amino acid, present in proteins, that oxidizes on exposure to air to form cystine. Formula: HSCH2CH(NH2)COOH
[C19: variant of cystine]
ˌcysteˈinic adj

cys•te•ine

(ˈsɪs tiˌin, -ɪn)

n.
a crystalline amino acid, C3H7O2NS, a component of nearly all proteins, obtained by the reduction of cystine. Abbr.: Cys;Symbol: C
[1880–85; alter. of cystine]
cys`te•in′ic, adj.

cys·te·ine

(sĭs′tə-ēn′)
A nonessential amino acid. See more at amino acid. See Note at keratin.
ThesaurusAntonymsRelated WordsSynonymsLegend:
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"
Translations
cystein
Cystein
cystéine
cysteina

cys·te·ine

n. cisteína, aminoácido derivado de la cistina, presente en la mayor parte de las proteínas.

cysteine

n cisteína
References in periodicals archive ?
The particular cysteine 428 and tryptophan 433 of pneumolysin are of great importance and any mutation in this region reduce its cytotoxicity to a greater extent e.
Four classes of such proteases are found in mammalian cells: Metalloproteases, aspartic, serine, and cysteine proteases.
KEY WORDS: Homarus americanus, aspartic peptidase, cysteine peptidases, crustacean protein digestion, American lobster
Sulphur is necessary for protein and enzyme synthesis as well it is a constituent of the amino acids methionine and cysteine in plants.
One mechanism is the inhibition of tyrosinase activity; this is a well-known function of thiol compounds in general including GSH and cysteine.
Since NRG-1 is capable of initiating the PI3K/Akt signaling cascade [16], we hypothesized that NRG-1 may promote neuronal Cbl metabolism by stimulating EAAT3-mediated cysteine uptake and increasing GSH synthesis, making more GSCbl available for active Cbl species formation.
Conversely, bound sulfane sulfur, which exists as the sulfurated cysteine residues of proteins, releases [H.
Therefore the present study was designed to determine effect of various concentrations of L- cysteine on frozen-thaw semen quality of Nili Ravi buffalo.
Evidence for the counterintuitive idea that oxygen radicals are beneficial came from experiments in which researchers gave animals an antioxidant called N-acetyl cysteine.
Hydrogen sulfide can also be produced as methionine and cysteine degradation, which may be a reflection of yeast stress or autolysis.