1995 Volume 59 Issue 12 Pages 2333-2335
α-Galactosidase was purified by ion-exchange chromatographies on DEAE-cellulose and SE-cellulose columns from the culture filtrate of Penicillium purpurogenum No. 618. The final preparation was judged homogeneous by SDS-PAGE and its molecular mass and isoelectric Point were estimated to be 67kDa and 4. 1, respectively. The N-terminal amino acid sequence of the enzyme was analyzed and aligned with those of other α-galactosidases. In addition, the enzyme acted on the stubbed α-galactosyl residue connected to the β-1, 4-manno-oligosaccharide chain, indicating that this specificity was quite different from that of Mortierella vinacea α-galactosidase.
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