Caspase-1 regulates cellular trafficking via cleavage of the Rab7 adaptor protein RILP.
Caspase-1 regulates cellular trafficking via cleavage of the Rab7 adaptor protein RILP.
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DOI:
10.1016/j.bbrc.2018.08.013
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发表时间:
2018-09-18
影响因子:
3.1
通讯作者:
Wozniak AL
中科院分区:
文献类型:
--
作者:
Adams A;Weinman SA;Wozniak AL
Intracellular trafficking is a tightly regulated cellular process, mediated in part by Rab GTPases and their corresponding effector proteins. Viruses have evolved mechanisms to hijack these processes to promote their lifecycles. Here we describe a mechanism by which cleavage of the Rab7 adaptor protein, RILP (Rab interacting lysosomal protein) is induced by viral infection. We report that RILP is directly cleaved by caspase-1 and we have identified a novel caspase-1 recognition site at aspartic acid 75 within the RILP sequence. Alanine substitution at D75 blocks caspase-1-mediated RILP cleavage. Full-length RILP localizes in a tight vesicular structure near the perinuclear region while the cleaved form of RILP re-distributes throughout the cytoplasm. However, cleavage alone was insufficient to re-localize RILP to the cellular periphery and re-localization required specific phosphorylation events near the caspase-1 recognition site. The combination of cleavage and phosphorylation were both needed for release from the dynein component p150Glued and redistribution of CD63+ve intracellular vesicles.
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DOI:
10.1111/j.1600-0854.2011.01194.x
发表时间:
2011-07
期刊:
Traffic (Copenhagen, Denmark)
影响因子:
--
作者:
Daniele T;Hackmann Y;Ritter AT;Wenham M;Booth S;Bossi G;Schintler M;Auer-Grumbach M;Griffiths GM
通讯作者:
Griffiths GM
DOI:
10.1073/pnas.0912260107
发表时间:
2010-06-08
影响因子:
11.1
作者:
Salomonis, Nathan;Schlieve, Christopher R.;Conklin, Bruce R.
通讯作者:
Conklin, Bruce R.
影响因子:
--
作者:
Spearman P
通讯作者:
Spearman P
影响因子:
4
作者:
Grieshaber, SS;Grieshaber, NA;Hackstadt, T
通讯作者:
Hackstadt, T
影响因子:
4
作者:
Ohbayashi, Norihiko;Maruta, Yuto;Fukuda, Mitsunori
通讯作者:
Fukuda, Mitsunori