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2ckh

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{{STRUCTURE_2ckh| PDB=2ckh | SCENE= }}
{{STRUCTURE_2ckh| PDB=2ckh | SCENE= }}
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'''SENP1-SUMO2 COMPLEX'''
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===SENP1-SUMO2 COMPLEX===
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==Overview==
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The SUMO (small ubiquitin-like modifier)-specific protease SENP1 (sentrin-specific protease 1) can process the three forms of SUMO to their mature forms and deconjugate SUMO from modified substrates. It has been demonstrated previously that SENP1 processed SUMO-1 more efficiently than SUMO-2, but displayed little difference in its ability to deconjugate the different SUMO paralogues from modified substrates. To determine the basis for this substrate specificity, we have determined the crystal structure of SENP1 in isolation and in a transition-state complex with SUMO-2. The interface between SUMO-2 and SENP1 has a relatively poor complementarity, and most of the recognition is determined by interaction between the conserved C-terminus of SUMO-2 and the cleft in the protease. Although SENP1 is rather similar in structure to the related protease SENP2, these proteases have different SUMO-processing activities. Electrostatic analysis of SENP1 in the region where the C-terminal peptide, removed during maturation, would project indicates that it is the electrostatic complementarity between this region of SENP1 and the C-terminal peptides of the various SUMO paralogues that mediates selectivity.
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(as it appears on PubMed at http://www.pubmed.gov), where 16553580 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16553580}}
==About this Structure==
==About this Structure==
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[[Category: Thiol protease]]
[[Category: Thiol protease]]
[[Category: Ubl conjugation pathway]]
[[Category: Ubl conjugation pathway]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 22:21:23 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 05:56:36 2008''

Revision as of 02:56, 28 July 2008

Image:2ckh.png

Template:STRUCTURE 2ckh

SENP1-SUMO2 COMPLEX

Template:ABSTRACT PUBMED 16553580

About this Structure

2CKH is a Protein complex structure of sequences from Homo sapiens. This structure supersedes the now removed PDB entry 2bzo. Full crystallographic information is available from OCA.

Reference

The structure of SENP1-SUMO-2 complex suggests a structural basis for discrimination between SUMO paralogues during processing., Shen LN, Dong C, Liu H, Naismith JH, Hay RT, Biochem J. 2006 Jul 15;397(2):279-88. PMID:16553580

Page seeded by OCA on Mon Jul 28 05:56:36 2008

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