Abstract
The molecular weight of the yeast tannase [E.C. 3.1.1.20, tannin acyl-hydrolase] of Candida sp. was determined to be 250,000 by gel filtration on Sephadex G–200. The enzyme was dissociable into two identical subunits with molecular weight of 120,000 on SDS-polyacrylamide gel electrophoresis. The amino acid analysis revealed that the enzyme consisted of 786 amino acid residues per protein molecule. The polypeptide moiety of the enzyme was 38 % by the Lowry-Folin reaction and 35% by the amino acid analysis. The enzyme contained 62% neutral sugars, which were identified as mannose and galactose on cellulose thin-layer chromatogram and 2.2 % hexosamines.
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