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细胞黏菌盘基网柄菌细胞外糖苷酶的纯化及性质

The purification and properties of extracellular glycosidases of the cellular slime mould Dictyostelium discoideum.

作者信息

Every D, Ashworth J M

出版信息

Biochem J. 1973 May;133(1):37-47. doi: 10.1042/bj1330037.

Abstract

The purification of beta-N-acetylhexosaminidase, alpha-glucosidase, alpha-mannosidase and beta-glucosidase from the spent growth medium of Dictyostelium discoideum strain Ax-2 myxamoebae is described. beta-N-Acetylhexosaminidase and alpha-glucosidase were obtained in high yield and as homogeneous preparations whereas the alpha-mannosidase preparation consisted of two electrophoretically distinct isoenzymes. The physical, chemical and kinetic properties of these enzymes are described.

摘要

本文描述了从盘基网柄菌Ax-2株变形体的用过的生长培养基中纯化β-N-乙酰己糖胺酶、α-葡萄糖苷酶、α-甘露糖苷酶和β-葡萄糖苷酶的方法。β-N-乙酰己糖胺酶和α-葡萄糖苷酶以高产量获得且为均一制剂,而α-甘露糖苷酶制剂由两种电泳性质不同的同工酶组成。文中还描述了这些酶的物理、化学和动力学性质。

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