3ml3

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[[Image:3ml3.png|left|200px]]
 
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{{STRUCTURE_3ml3| PDB=3ml3 | SCENE= }}
{{STRUCTURE_3ml3| PDB=3ml3 | SCENE= }}
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===Crystal structure of the IcsA autochaperone region===
===Crystal structure of the IcsA autochaperone region===
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{{ABSTRACT_PUBMED_21335457}}
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==Function==
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[[http://www.uniprot.org/uniprot/ICSA_SHIFL ICSA_SHIFL]] Essential for bacterial spreading by eliciting polar deposition of filamentous actin (actin-based motility). Inside the host cell mediates nucleation and polymerization of actin molecules on the bacterial surface, which provides the propulsive force for intracellular movement and intercellular dissemination of the bacterium. During invasion of mammalian cells, triggers autophagy by binding to APG5L. Interaction with IcsB leads to escape from the autophagic host defense system. Also binds ATP and displays weak ATPase activity.<ref>PMID:7896693</ref> <ref>PMID:2542950</ref> <ref>PMID:1602963</ref> <ref>PMID:9582270</ref> <ref>PMID:15576571</ref>
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{{ABSTRACT_PUBMED_21335457}}
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==About this Structure==
==About this Structure==
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==Reference==
==Reference==
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<ref group="xtra">PMID:21335457</ref><references group="xtra"/>
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<ref group="xtra">PMID:021335457</ref><references group="xtra"/><references/>
[[Category: Shigella flexneri]]
[[Category: Shigella flexneri]]
[[Category: Diezmann, D.]]
[[Category: Diezmann, D.]]
[[Category: Kuhnel, K.]]
[[Category: Kuhnel, K.]]
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[[Category: Beta helix]]
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[[Category: Beta sandwich]]
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[[Category: Protein transport]]

Revision as of 21:01, 17 April 2013

Template:STRUCTURE 3ml3

Contents

Crystal structure of the IcsA autochaperone region

Template:ABSTRACT PUBMED 21335457

Function

[ICSA_SHIFL] Essential for bacterial spreading by eliciting polar deposition of filamentous actin (actin-based motility). Inside the host cell mediates nucleation and polymerization of actin molecules on the bacterial surface, which provides the propulsive force for intracellular movement and intercellular dissemination of the bacterium. During invasion of mammalian cells, triggers autophagy by binding to APG5L. Interaction with IcsB leads to escape from the autophagic host defense system. Also binds ATP and displays weak ATPase activity.[1] [2] [3] [4] [5]

About this Structure

3ml3 is a 1 chain structure with sequence from Shigella flexneri. Full crystallographic information is available from OCA.

Reference

  • Kuhnel K, Diezmann D. Crystal Structure of the Autochaperone Region from the Shigella flexneri Autotransporter IcsA. J Bacteriol. 2011 Apr;193(8):2042-5. Epub 2011 Feb 18. PMID:21335457 doi:10.1128/JB.00790-10
  1. ↑ Fukuda I, Suzuki T, Munakata H, Hayashi N, Katayama E, Yoshikawa M, Sasakawa C. Cleavage of Shigella surface protein VirG occurs at a specific site, but the secretion is not essential for intracellular spreading. J Bacteriol. 1995 Apr;177(7):1719-26. PMID:7896693
  2. ↑ Bernardini ML, Mounier J, d'Hauteville H, Coquis-Rondon M, Sansonetti PJ. Identification of icsA, a plasmid locus of Shigella flexneri that governs bacterial intra- and intercellular spread through interaction with F-actin. Proc Natl Acad Sci U S A. 1989 May;86(10):3867-71. PMID:2542950
  3. ↑ d'Hauteville H, Sansonetti PJ. Phosphorylation of IcsA by cAMP-dependent protein kinase and its effect on intracellular spread of Shigella flexneri. Mol Microbiol. 1992 Apr;6(7):833-41. PMID:1602963
  4. ↑ Suzuki T, Miki H, Takenawa T, Sasakawa C. Neural Wiskott-Aldrich syndrome protein is implicated in the actin-based motility of Shigella flexneri. EMBO J. 1998 May 15;17(10):2767-76. PMID:9582270 doi:10.1093/emboj/17.10.2767
  5. ↑ Ogawa M, Yoshimori T, Suzuki T, Sagara H, Mizushima N, Sasakawa C. Escape of intracellular Shigella from autophagy. Science. 2005 Feb 4;307(5710):727-31. Epub 2004 Dec 2. PMID:15576571 doi:10.1126/science.1106036

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