SELENOCYSTEINE

[(Science: amino acid) An unusual amino acid of proteins, the selenium analogue of cysteine, in which a selenium atom replaces sulphur. involved in the catalytic mechanism of seleno enzymes such as formate dehydrogenase of e. Coli and mammalian glutathione peroxidase. May be co translationally coded by a special opal suppressor tRNAase that recognises certain UGA nonsense codons.

Molecular Formula: C₃H₇NO₂Se

InChI: InChI=1/C3H7NO2Se/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1/f/h5H

InChIKey: InChIKey=ZKZBPNGNEQAJSX-SNQCPAJUDP
SMILES: N[C@@H](C[SeH])C(O)=O

CAS number 10236-58-5

Names:
    L-Selenocysteine
    L-Selenocystein
    L-selenocysteine
    L-Selenocysteine
    L-selenocysteine
    L-Selenozystein
    Selenocysteine
    SELENOCYSTEINE
    (2S)-2-amino-3-selanyl-propanoic acid
    3-selenyl-L-alanine

Registries:
    PubChem CID 25076
    Beilstein =2498378
    CAS 10236-58-5 (from NIST)
    ChEBI 16633
    chemPDB CSE
    Kegg C02432
    PubChem ID 5459
    PubChem ID 8168305