2io3

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{{STRUCTURE_2io3| PDB=2io3 | SCENE= }}
{{STRUCTURE_2io3| PDB=2io3 | SCENE= }}
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'''Crystal structure of human Senp2 in complex with RanGAP1-SUMO-2'''
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===Crystal structure of human Senp2 in complex with RanGAP1-SUMO-2===
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==Overview==
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SUMO processing and deconjugation are essential proteolytic activities for nuclear metabolism and cell-cycle progression in yeast and higher eukaryotes. To elucidate the mechanisms used during substrate lysine deconjugation, SUMO isoform processing and SUMO isoform interactions, X-ray structures were determined for a catalytically inert SENP2 protease domain in complex with conjugated RanGAP1-SUMO-1 or RanGAP1-SUMO-2, or in complex with SUMO-2 or SUMO-3 precursors. Common features within the active site include a 90 degrees kink proximal to the scissile bond that forces C-terminal amino acid residues or the lysine side chain toward a protease surface that appears optimized for lysine deconjugation. Analysis of this surface reveals SENP2 residues, particularly Met497, that mediate, and in some instances reverse, in vitro substrate specificity. Mutational analysis and biochemistry provide a mechanism for SENP2 substrate preferences that explains why SENP2 catalyzes SUMO deconjugation more efficiently than processing.
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{{ABSTRACT_PUBMED_17099700}}
==About this Structure==
==About this Structure==
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[[Category: Ubiquitin]]
[[Category: Ubiquitin]]
[[Category: Ulp]]
[[Category: Ulp]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 07:42:31 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 09:14:22 2008''

Revision as of 06:14, 29 July 2008

Image:2io3.png

Template:STRUCTURE 2io3

Crystal structure of human Senp2 in complex with RanGAP1-SUMO-2

Template:ABSTRACT PUBMED 17099700

About this Structure

2IO3 is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structural basis for SENP2 protease interactions with SUMO precursors and conjugated substrates., Reverter D, Lima CD, Nat Struct Mol Biol. 2006 Dec;13(12):1060-8. Epub 2006 Nov 12. PMID:17099700

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