2fd4: Difference between revisions
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[[Image:2fd4.gif|left|200px]] | [[Image:2fd4.gif|left|200px]] | ||
'''Crystal Structure of AvrPtoB (436-553)''' | {{Structure | ||
|PDB= 2fd4 |SIZE=350|CAPTION= <scene name='initialview01'>2fd4</scene>, resolution 1.80Å | |||
|SITE= | |||
|LIGAND= | |||
|ACTIVITY= | |||
|GENE= | |||
}} | |||
'''Crystal Structure of AvrPtoB (436-553)''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
2FD4 is a [ | 2FD4 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Pseudomonas_syringae Pseudomonas syringae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FD4 OCA]. | ||
==Reference== | ==Reference== | ||
A bacterial inhibitor of host programmed cell death defenses is an E3 ubiquitin ligase., Janjusevic R, Abramovitch RB, Martin GB, Stebbins CE, Science. 2006 Jan 13;311(5758):222-6. Epub 2005 Dec 22. PMID:[http:// | A bacterial inhibitor of host programmed cell death defenses is an E3 ubiquitin ligase., Janjusevic R, Abramovitch RB, Martin GB, Stebbins CE, Science. 2006 Jan 13;311(5758):222-6. Epub 2005 Dec 22. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16373536 16373536] | ||
[[Category: Pseudomonas syringae]] | [[Category: Pseudomonas syringae]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: Stebbins, C E.]] | [[Category: Stebbins, C E.]] | ||
[[Category: avrptob]] | [[Category: avrptob]] | ||
[[Category: | [[Category: pseudomona]] | ||
[[Category: ring finger]] | [[Category: ring finger]] | ||
[[Category: u-box]] | [[Category: u-box]] | ||
[[Category: ubiquitin ligase]] | [[Category: ubiquitin ligase]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 16:50:57 2008'' | ||
Revision as of 14:50, 20 March 2008
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| 2fd4, resolution 1.80Å | |||||||||||||
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| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
Crystal Structure of AvrPtoB (436-553)
Overview
The Pseudomonas syringae protein AvrPtoB is translocated into plant cells, where it inhibits immunity-associated programmed cell death (PCD). The structure of a C-terminal domain of AvrPtoB that is essential for anti-PCD activity reveals an unexpected homology to the U-box and RING-finger components of eukaryotic E3 ubiquitin ligases, and we show that AvrPtoB has ubiquitin ligase activity. Mutation of conserved residues involved in the binding of E2 ubiquitin-conjugating enzymes abolishes this activity in vitro, as well as anti-PCD activity in tomato leaves, which dramatically decreases virulence. These results show that Pseudomonas syringae uses a mimic of host E3 ubiquitin ligases to inactivate plant defenses.
About this Structure
2FD4 is a Single protein structure of sequence from Pseudomonas syringae. Full crystallographic information is available from OCA.
Reference
A bacterial inhibitor of host programmed cell death defenses is an E3 ubiquitin ligase., Janjusevic R, Abramovitch RB, Martin GB, Stebbins CE, Science. 2006 Jan 13;311(5758):222-6. Epub 2005 Dec 22. PMID:16373536
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