- Vanadate activation of bromoperoxidase from Corallina officinalis.
Vanadate activation of bromoperoxidase from Corallina officinalis.
Biochemical and biophysical research communications (1989-04-14)
H Yu, J W Whittaker
PMID2540754
초록
A nonheme bromoperoxidase has been purified to homogeneity from the red seaweed Corallina officinalis. Like the corresponding enzyme previously reported from C. pilulifera, this bromoperoxidase contains a significant amount of nonheme iron. However, it is vanadate ion and not iron that activates the enzyme, and maximal activity is achieved with stoichiometric vanadium incorporation. The absence of competition between vanadium and iron suggests that they occupy distinct binding sites in the protein. A correlation between vanadium content and catalytic activity indicates that less than 12 percent of the maximal activity of the enzyme can be derived from metals other than vanadium.
MATERIALS
제품 번호
브랜드
제품 설명
Sigma-Aldrich
Bromoperoxidase from Corallina officinalis, lyophilized powder, ≥100 units/mg protein (Lowry)