2j0n

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{{Seed}}
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{{STRUCTURE_2j0n| PDB=2j0n | SCENE= }}
{{STRUCTURE_2j0n| PDB=2j0n | SCENE= }}
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'''A PROTEOLYTICALLY TRUNCATED FORM OF SHIGELLA FLEXNERI IPAD'''
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===A PROTEOLYTICALLY TRUNCATED FORM OF SHIGELLA FLEXNERI IPAD===
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==Overview==
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Bacteria expressing type III secretion systems (T3SS) have been responsible for the deaths of millions worldwide, acting as key virulence elements in diseases ranging from plague to typhoid fever. The T3SS is composed of a basal body, which traverses both bacterial membranes, and an external needle through which effector proteins are secreted. We report multiple crystal structures of two proteins that sit at the tip of the needle and are essential for virulence: IpaD from Shigella flexneri and BipD from Burkholderia pseudomallei. The structures reveal that the N-terminal domains of the molecules are intramolecular chaperones that prevent premature oligomerization, as well as sharing structural homology with proteins involved in eukaryotic actin rearrangement. Crystal packing has allowed us to construct a model for the tip complex that is supported by mutations designed using the structure.
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(as it appears on PubMed at http://www.pubmed.gov), where 17077085 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17077085}}
==About this Structure==
==About this Structure==
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[[Category: Type iii secretion]]
[[Category: Type iii secretion]]
[[Category: Virulence]]
[[Category: Virulence]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 08:10:34 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 07:57:20 2008''

Revision as of 04:57, 28 July 2008

Image:2j0n.png

Template:STRUCTURE 2j0n

A PROTEOLYTICALLY TRUNCATED FORM OF SHIGELLA FLEXNERI IPAD

Template:ABSTRACT PUBMED 17077085

About this Structure

2J0N is a Single protein structure of sequence from Shigella flexneri. Full crystallographic information is available from OCA.

Reference

Self-chaperoning of the type III secretion system needle tip proteins IpaD and BipD., Johnson S, Roversi P, Espina M, Olive A, Deane JE, Birket S, Field T, Picking WD, Blocker AJ, Galyov EE, Picking WL, Lea SM, J Biol Chem. 2007 Feb 9;282(6):4035-44. Epub 2006 Oct 31. PMID:17077085

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