Inositol hexakisphosphate-induced autoprocessing of large bacterial protein toxins.
Inositol hexakisphosphate-induced autoprocessing of large bacterial protein toxins.
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DOI:
10.1371/journal.ppat.1000942
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发表时间:
2010-07-08
期刊:
影响因子:
6.7
通讯作者:
Satchell KJ
中科院分区:
文献类型:
--
作者:
Egerer M;Satchell KJ
Large bacterial protein toxins autotranslocate functional effector domains to the eukaryotic cell cytosol, resulting in alterations to cellular functions that ultimately benefit the infecting pathogen. Among these toxins, the clostridial glucosylating toxins (CGTs) produced by Gram-positive bacteria and the multifunctional-autoprocessing RTX (MARTX) toxins of Gram-negative bacteria have distinct mechanisms for effector translocation, but a shared mechanism of post-translocation autoprocessing that releases these functional domains from the large holotoxins. These toxins carry an embedded cysteine protease domain (CPD) that is activated for autoprocessing by binding inositol hexakisphosphate (InsP6), a molecule found exclusively in eukaryotic cells. Thus, InsP6-induced autoprocessing represents a unique mechanism for toxin effector delivery specifically within the target cell. This review summarizes recent studies of the structural and molecular events for activation of autoprocessing for both CGT and MARTX toxins, demonstrating both similar and potentially distinct aspects of autoprocessing among the toxins that utilize this method of activation and effector delivery.
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影响因子:
3.6
作者:
Geissler B;Bonebrake A;Sheahan KL;Walker ME;Satchell KJ
通讯作者:
Satchell KJ
影响因子:
64.8
作者:
JUST, I;SELZER, J;AKTORIES, K
通讯作者:
AKTORIES, K
影响因子:
7.2
作者:
Cohen, Adam L.;Bhatnagar, Jufulu;McDonald, L. Clifford
通讯作者:
McDonald, L. Clifford
影响因子:
11.4
作者:
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通讯作者:
Mekalanos, JJ
影响因子:
6.4
作者:
Chung, Kyoung-Jin;Cho, Eun-Jin;Lee, Tae-Hoon
通讯作者:
Lee, Tae-Hoon