MEASUREMENT OF MITOCHONDRIAL OXIDATIVE-PHOSPHORYLATION - SELECTIVE-INHIBITION OF ADENYLATE KINASE-ACTIVITY BY P1,P5-DI-(ADENOSINE-5')-PENTAPHOSPHATE

被引:20
作者
MELNICK, RL [1 ]
RUBENSTEIN, CP [1 ]
MOTZKIN, SM [1 ]
机构
[1] POLYTECH INST NEW YORK,MICROWAVE RES INST,DEPT ELECT ENGN,BROOKLYN,NY 11201
关键词
D O I
10.1016/0003-2697(79)90546-3
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A biochemical assay for the measurement of ATP synthesis coupled to electron transport in the presence of adenylate kinase was developed as an alternative to using the conventional Clark-type oxygen electrode. The assay utilizes P1,P5-di-(adenosine-5′)-pentaphosphate which is shown to be a competitive inhibitor with MgADP for rat liver mitochondrial adenylate kinase (Ki = 7.04 × 10-8 m) and was found to have no effect on oxidative phosphorylation of either intact mitochondria or submitochondrial particles. © 1979.
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页码:7 / 11
页数:5
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