1jbb: Difference between revisions
No edit summary |
No edit summary |
||
| Line 5: | Line 5: | ||
|SITE= | |SITE= | ||
|LIGAND= | |LIGAND= | ||
|ACTIVITY= [http://en.wikipedia.org/wiki/Ubiquitin--protein_ligase Ubiquitin--protein ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.2.19 6.3.2.19] | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Ubiquitin--protein_ligase Ubiquitin--protein ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.2.19 6.3.2.19] </span> | ||
|GENE= Ubc13 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae]) | |GENE= Ubc13 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae]) | ||
|DOMAIN= | |||
|RELATEDENTRY= | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1jbb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jbb OCA], [http://www.ebi.ac.uk/pdbsum/1jbb PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1jbb RCSB]</span> | |||
}} | }} | ||
| Line 32: | Line 35: | ||
[[Category: ubiquitin-conjugating enzyme]] | [[Category: ubiquitin-conjugating enzyme]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 21:31:07 2008'' | ||
Revision as of 21:31, 30 March 2008
| |||||||
| , resolution 2.0Å | |||||||
|---|---|---|---|---|---|---|---|
| Gene: | Ubc13 (Saccharomyces cerevisiae) | ||||||
| Activity: | Ubiquitin--protein ligase, with EC number 6.3.2.19 | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Ubiquitin Conjugating Enzyme, Ubc13
OverviewOverview
While the signaling properties of ubiquitin depend on the topology of polyubiquitin chains, little is known concerning the molecular basis of specificity in chain assembly and recognition. UEV/Ubc complexes have been implicated in the assembly of Lys63-linked polyubiquitin chains that act as a novel signal in postreplicative DNA repair and I kappa B alpha kinase activation. The crystal structure of the Mms2/Ubc13 heterodimer shows the active site of Ubc13 at the intersection of two channels that are potential binding sites for the two substrate ubiquitins. Mutations that destabilize the heterodimer interface confer a marked UV sensitivity, providing direct evidence that the intact heterodimer is necessary for DNA repair. Selective mutations in the channels suggest a molecular model for specificity in the assembly of Lys63-linked polyubiquitin signals.
About this StructureAbout this Structure
1JBB is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.
ReferenceReference
Molecular insights into polyubiquitin chain assembly: crystal structure of the Mms2/Ubc13 heterodimer., VanDemark AP, Hofmann RM, Tsui C, Pickart CM, Wolberger C, Cell. 2001 Jun 15;105(6):711-20. PMID:11440714
Page seeded by OCA on Sun Mar 30 21:31:07 2008