PURIFICATION AND SOME PROPERTIES OF SQUALENE-2,3-EPOXIDE-LANOSTEROL CYCLASE FROM RAT-LIVER

被引:0
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作者
KUSANO, M [1 ]
ABE, I [1 ]
SANKAWA, U [1 ]
EBIZUKA, Y [1 ]
机构
[1] UNIV TOKYO, FAC PHARMACEUT SCI, 7-3-1 HONGO, BUNKYO KU, TOKYO 113, JAPAN
关键词
SQUALENE-2,3-EPOXIDE; LANOSTEROL; CYCLASE; RAT LIVER;
D O I
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中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Squalene-2,3-epoxide:lanosterol cyclase was purified from rat liver in five steps as a soluble and homogeneous protein. The purified enzyme showed a single band on SDS-polyacrylamide gel electrophoresis with a molecular weight of 75 kD. In its native state it behaved as a homo-dimer. The isoelectric point of 5.5 and the apparent Km value for (3S)-squalene-epoxide of 55-mu-M were estimated for the cyclase.
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页码:239 / 241
页数:3
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