Purification of transketolase from baker's yeast by an immunoadsorbent
Tikhomirova, N.K.; Kochetov, G.A.
Biochemistry International 22(1): 31-36
1990
ISSN/ISBN: 0158-5231 PMID: 2282080 Document Number: 351314
Baker's yeast transketolase has been purified by immunoaffinity chromatography on specific TK antibodies covalently linked to CNBr-agarose. Affinity chromatography allows a 480-fold purification of TK from yeast extracts and about 80% recovery of the original activity. The isolated enzyme has a specific activity of 12-60 U/mg and during polyacrylamide gel electrophoresis performed at pH 8.9 migrates as two protein bands possessing a transketolase activity which corresponds to two isoforms of the enzyme.