Lysyl oxidase requires which cofactor -
a) Zn
b) Cu
c) Se
d) Fe
Correct Answer - B
Ans. is’b’i.e., Cu [Rel Harper 27t’/e p. 546]
metal metalloenzymes
Calcium Lipase, Lecithinase
Copper
Cytochrome oxidase, Tyrosinase, Lysyl oxidase,
Superoxide dismutase, Ascorbic acid oxidase,
Ferroxidase (ceruloplasmin)
iron Cytochrome oxidase, Xanthine oxidase, Catalase,
Peroxidase
Zinc
Carbonic anhydrase, alkaline phosphatase, RNA
polymerase, alcohol dehydrogenase,
Carboxypeptidase, Prophobilinogen synthase,
glutamate dehydrogenase, lactate dehydrogenase,
Superoxide dismutase
Magnesium
Hexokinase, phosphofructokinase, glucose-6-
phosphatase, enolase, creatinine kinase,
Phosphatases, kinase
Manganese Arginase, Pyruvate carboxylase, phosphoglucomutase,
Glycosyl transferase, Hexokinase, Enolase
Potassium Pyruvate kinase
Selenium Glutathione peroxidase
Nickel Urease
molybednumXanthine oxidase