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GALACTOSYLATION OF CYCLODEXTRINS AND BRANCHED CYCLODEXTRINS BY ALPHA-GALACTOSIDASES
被引:36
作者:
HARA, K
FUJITA, K
KUWAHARA, N
TANIMOTO, T
HASHIMOTO, H
KOIZUMI, K
KITAHATA, S
机构:
[1] ENSUIKO SUGAR REFINING CO LTD, CARBOHYDRATE RES LAB, TSURUMI KU, YOKOHAMA 230, KANAGAWA, JAPAN
[2] MUKOGAWA WOMENS UNIV, FAC PHARMACEUT SCI, NISHINOMIYA, HYOGO 663, JAPAN
关键词:
D O I:
10.1271/bbb.58.652
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
Transgalactosylated derivatives of cyclodextrins (CDs) and glucosyl and maltosyl CDs (G1- and G2-CDs) were synthesized by alpha-galactosidases from coffee bean and Mortierella vinacea (M. vinacea). The structures of the transfer products were analyzed by FAB-mass, C-13-NMR and methylation. Coffee bean alpha-galactosidase transferred a galactosyl residue not only to side chains of G1-CDs and G2-CDs, but also directly to CD rings. M. vinacea alpha-galactosidase transferred a galactosyl residue only to side chains of G2-CDs.
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页码:652 / 659
页数:8
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