ELECTRON-TRANSPORT IN BIOLOGICAL PROCESSES .2. ELECTROCHEMICAL-BEHAVIOR OF Q(10) IMMERSED IN A PHOSPHOLIPIDIC MATRIX ADDED ON A PYROLITIC GRAPHITE ELECTRODE

被引：10

作者：

SANCHEZ, S ^{[1
]}

ARRATIA, A ^{[1
]}

CORDOVA, R ^{[1
]}

GOMEZ, H ^{[1
]}

SCHREBLER, R ^{[1
]}

机构：

[1] PONTIFICIA UNIV CATOLICA VALPARAISO, INST QUIM, VALPARAISO, CHILE

来源：

BIOELECTROCHEMISTRY AND BIOENERGETICS | 1995年 / 36卷 / 01期

关键词：

ELECTRON TRANSPORT; UBIQUINONE;

D O I：

10.1016/0302-4598(94)01726-H

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：

In order to study the behaviour of ubiquinone inside a phospholipid matrix, the E-pH diagrams for CoQ(10) adsorbed on a graphite electrode and on a phospholipid modified graphite electrode were compared. The stabilization area for the protonated free radical HQ was found to be larger in the presence of phospholipids, contrary to results obtained for the charged species. This fact strongly supports the role proposed for ubiquinone in the respiratory chain model where a stable neutral semiubiquinone radical would allow the unitary electron transport through the inner mitochondrial membrane.

引用

页码：67 / 71

页数：5

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