Definition of cystine in English:

cystine

Syllabification: cys·tine
Pronunciation: /ˈsistēn
 
/

noun

Biochemistry
A compound that is an oxidized dimer of cysteine and is the form in which cysteine often occurs in organic tissue.
  • Chemical formula: C6H12N2O4S2
More example sentences
  • The sulfur-containing amino acids are methionine, cysteine, cystine, homocysteine, homocystine, and taurine.
  • Cysteine in the extracellular space is mostly oxidized to cystine.
  • Glutathione conjugation uses Nacetylcysteine, cysteine, and methionine; cystine is used for sulfation; and glucuronidation requires pantothenic acid.

Origin

mid 19th century: from Greek kustis 'bladder' (because it was first isolated from urinary calculi) + -ine4.

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