ELECTROPHYSIOLOGY OF THE INNER MITOCHONDRIAL-MEMBRANE

被引:133
作者
ZORATTI, M
SZABO, I
机构
[1] CNR Unit for the Physiology of Mitochondria, Department of Biomedical Sciences, University of Padova, Padova
关键词
ION CHANNELS; PATCH-CLAMP; MITOCHONDRIAL MEGACHANNEL; PERMEABILITY TRANSITION; MITOCHONDRIA;
D O I
10.1007/BF00762739
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
The application of electrophysiological techniques to mitochondrial membranes has allowed the observation and partial characterization of several ion channels, including an ATP-sensitive K+-selective one, a high-conductance ''megachannel'', a 107 pS anionic channel and three others studied at alkaline pH's. A reliable correlation with the results of non-electrophysiological studies has been obtained so far only for the first two cases. Activities presumed to be associated with the Ca2+ uniporter and with the adenine nucleotide translocator, as well as the presence of various other conductances have also been reported. The review summarizes the main properties of these pores and their possible relationship to permeation pathways identified in biochemical studies.
引用
收藏
页码:543 / 553
页数:11
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