biocytinase


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bi·o·cy·tin·ase

(bī-ō-sī'tin-āz),
An enzyme in blood that catalyzes the hydrolysis of biocytin to biotin and lysine (or, lysyl residue if the lysine is part of a protein sequence).

biotinidase

An enzyme encoded by BTD on chromosome 3p25, which recycles biotin by cleaving biocytin (biotin-lysine), a normal product of carboxylase degradation.