期刊
FRONTIERS IN PHYSIOLOGY
卷 4, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fphys.2013.00095
关键词
mitochondria; permeability transition; calcium; FoF1 ATP synthase
类别
资金
- AIRC [IG 13392]
- MIUR [FMB RBAP11S8C3, PRIN 20107Z8XBW]
- NIH-PHS [R0IGM069883, R03DA033978-01]
- Telethon [GGP 11082, GPP10005A]
- Universita di Padova (Progetti Strategici di Ateneo)
The permeability transition (PT) denotes an increase of the mitochondrial inner membrane permeability to solutes with molecular masses up to about 1500 Da. It is presumed to be mediated by opening of a channel, the permeability transition pore (PIP), whose molecular nature remains a mystery. Here I briefly review the history of the PIP discuss existing models, and present our new results indicating that reconstituted dimers of the FOF1 ATP synthase form a channel with properties identical to those of the mitochondrial megachannel (MMC), the electrophysiological equivalent of the PIP Open questions remain, but there is now promise that the PIP can be studied by genetic methods to solve the large number of outstanding problems.
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