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The role and structure of mitochondrial carriers
被引:129
作者:
Kunji, ERS
[1
]
机构:
[1] MRC, Dunn Human Nutr Unit, Cambridge CB2 2XY, England
基金:
英国医学研究理事会;
关键词:
mitochondrial carrier;
electron crystallography;
X-ray crystallography;
structure;
membrane protein;
D O I:
10.1016/S0014-5793(04)00242-X
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:
Members of the mitochondrial carrier family transport compounds over the inner mitochondrial membrane to link the biochemical pathways in the cytosol with those in the mitochondrial matrix. X-ray crystallography has recently provided us with the first atomic model of the bovine ADP/ATP carrier, which is a member of this family. The structure explains the typical three-fold sequence repeats and signature motif of mitochondrial carriers. However, the carrier was crystallised as a monomer in detergent, which is inconsistent with the consensus that mitochondrial carriers exist as homo-dimers. The projection structure of the yeast ADP/ATP carrier by electron crystallography shows that carriers could form homo-dimers in the membrane. (C) 2004 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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页码:239 / 244
页数:6
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