Zystin

Cystine A covalently linked dimeric nonessential amino acid formed by the oxidation of CYSTEINE. Two molecules of cysteine are joined together by a disulfide bridge to form cystine.

[(Science: amino acid) The amino acid formed by linking two cysteine residues with a disulphide linkage between the two sh groups. The analagous compound present within proteins is termed two half cysteines.

[1. the disulfide product of two cysteines in which two —SH groups become one —S—S— group; if two cysteinyl residues in polypeptide chains form a disulfide linkage, then the two polymers are cross-linked; sometimes occurs as a deposit in the urine, or forming a vesical calculus.

Molecular Formula: C₆H₁₂N₂O₄S₂

InChI: InChI=1/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/f/h9,11H

InChIKey: InChIKey=LEVWYRKDKASIDU-FLKJISBTCJ
SMILES: NC(CSSCC(N)C(O)=O)C(O)=O

Names:
    alpha-Diamino-beta-dithiolactic acid
    cystine
    Cystine
    Cystin
    Cystine
    cystine
    Dicysteine
    L-cystine
    Zystin
    2-amino-3-(2-amino-2-carboxy-ethyl)disulfanyl-propanoic acid
    3,3'-dithiobis(2-aminopropanoic acid)

Registries:
    PubChem CID 595
    ChEBI 17376
    Kegg C01420
    PubChem ID 10336319
    PubChem ID 4607