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There has been a current interest in the structure and catalytic function of active site of Ni containing enzyme, urease which catalyzes the hydrolysis of urea to yield ammonia and carbamate. The carbamate group of carbamylated δ-amino residue of lysine 217 bridges two Ni(II) ions in the active site of the bacterial urease and each Ni(II) is coordinated by two imidazole groups of His. Some dinuclear...
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