Identification of lysine at the active site of human 5-aminolaevulinate dehydratase.

Article Details

Citation

Gibbs PN, Jordan PM

Identification of lysine at the active site of human 5-aminolaevulinate dehydratase.

Biochem J. 1986 Jun 1;236(2):447-51.

PubMed ID
3092810 [ View in PubMed
]
Abstract

Reduction of human 5-aminolaevulinate dehydratase with NaBH4 in the presence of 14C-labelled substrate led to complete loss of catalytic activity and to incorporation of label into the enzyme protein. By comparison with authentic lysyl-aminolaevulinic acid, prepared chemically, the modified active-site amino acid obtained by acid hydrolysis was shown to be lysine. Sequencing of a CNBr-cleavage peptide isolated from the inactivated 14C-labelled enzyme revealed that the lysine was present within the sequence M-V-K-P-G-M.

DrugBank Data that Cites this Article

Polypeptides
NameUniProt ID
Delta-aminolevulinic acid dehydrataseP13716Details