A protein complex that regulates PtdIns(3,5)P2 levels.
A protein complex that regulates PtdIns(3,5)P2 levels.
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DOI:
10.1038/emboj.2008.270
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发表时间:
2009-01-21
期刊:
影响因子:
11.4
通讯作者:
Dove, Stephen K.
中科院分区:
文献类型:
--
作者:
Michell, Robert H.;Dove, Stephen K.
Phosphatidylinositol 3, 5-bisphosphate (PtdIns (3, 5) P2) is needed for retrograde membrane trafficking from lysosomal and late endosomal compartments and its synthesis is tightly regulated. But how cells regulate PtdIns (3, 5) P2 synthesis—for example, in response to hyperosmotic shock—remains unexplained. A paper from the Weisman group gives the most complete picture so far of a multiprotein complex that controls PtdIns (3, 5) P2 synthesis and explains how a VAC14 mutation functionally impairs the scaffold protein at the heart of the complex and causes a neurodegenerative condition in mice.Since phosphatidylinositol 3, 5-bisphosphate (PtdIns (3, 5) P2) was discovered a decade ago (Dove et al, 1997), it has become clear that it is a ubiquitous eukaryote phosphoinositide of very low abundance. PtdIns (3, 5) P2 probably has multiple functions—the best characterised of which is support, and probably regulation, of retrograde membrane trafficking from lysosomal and late endosomal compartments to the Golgi complex (Dove et al, 2004; Efe et al, 2005; Michell et al, 2006; Shisheva, 2008). Genetic loss or malfunction of several proteins essential to PtdIns (3, 5) P2 function is deleterious both in yeast and animals (see Jin et al (2008) for references). Only recently have the first real hints about how cellular PtdIns (3, 5) P2 levels are regulated—for example, how is synthesis stimulated by hyperosmotic shock—begun to emerge, and this is the problem addressed by this study (Jin et al, 2008).
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影响因子:
5.6
作者:
Sbrissa, Diego;Ikonomov, Ognian C.;Fenner, Homer;Shisheva, Assia
通讯作者:
Shisheva, Assia
影响因子:
9.2
作者:
Dove, SK;McEwen, RK;Michell, RH
通讯作者:
Michell, RH
影响因子:
64.8
作者:
Dove, SK;Cooke, FT;Michell, RH
通讯作者:
Michell, RH
影响因子:
3.3
作者:
Botelho, Roberto J.;Efe, Jem A.;Emr, Scott D.
通讯作者:
Emr, Scott D.
DOI:
10.1073/pnas.0702275104
发表时间:
2007-10-30
影响因子:
11.1
作者:
Zhang, Yanling;Zolov, Sergey N.;Weisman, Lois S.
通讯作者:
Weisman, Lois S.