CHEMICAL CROSS-LINKING OF MITOCHONDRIAL NADH DEHYDROGENASE FROM BOVINE HEART

被引：28

作者：

CLEETER, MWJ ^{[1
]}

BANISTER, SH ^{[1
]}

RAGAN, CI ^{[1
]}

机构：

[1] UNIV SOUTHAMPTON, DEPT BIOCHEM, SOUTHAMPTON SO9 3TU, HANTS, ENGLAND

来源：

BIOCHEMICAL JOURNAL | 1985年 / 227卷 / 02期

关键词：

D O I：

10.1042/bj2270467

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：

The structure of bovine heart mitochondrial NADH dehydrogenase was investigated by using 2 cleavable cross-linking agents, disuccinimidyl tartrate and (ethyleneglycol)ylbis-(succinimidylsuccinate). Cross-linking was analyzed primarily by immunoblotting to detect products containing subunits of the Fe-protein fraction from chaotropic resolution of the enzyme, namely, those of 75, 49, 30 and 13 kDa [dalton]. By using both the isolated Fe protein fraction and the intact dehydrogenase, cross-links were identified between these 4 subunits, from these subunits to the largest subunit of the flavoprotein fraction, which contains the active site for NADH and from these subunits to polypeptides in the hydrophobic shell, which surrounds the hydrophilic Fe protein and flavoprotein fractions.

引用

页码：467 / 474

页数：8

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