释义 |
cys·teine \ˈsiˌstēn, -_stēˌēn, ˈsistə̇n also siˈstēə̇n\ noun (-s) Etymology: International Scientific Vocabulary, blend of cystine and -eine; originally formed as German zystein : a crystalline amino acid HSCH2CH(NH2)COOH occurring as a constituent of many proteins and of glutathione and readily oxidizable to cystine; β-mercapto-alanine |