1zgu
From Proteopedia
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'''Solution structure of the human Mms2-Ubiquitin complex''' | '''Solution structure of the human Mms2-Ubiquitin complex''' | ||
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[[Category: Spyracopoulos, L.]] | [[Category: Spyracopoulos, L.]] | ||
[[Category: Xiao, W.]] | [[Category: Xiao, W.]] | ||
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Revision as of 14:36, 3 May 2008
Solution structure of the human Mms2-Ubiquitin complex
Overview
Modification of proteins by post-translational covalent attachment of a single, or chain, of ubiquitin molecules serves as a signaling mechanism for a number of regulatory functions in eukaryotic cells. For example, proteins tagged with lysine-63 linked polyubiquitin chains are involved in error-free DNA repair. The catalysis of lysine-63 linked polyubiquitin chains involves the sequential activity of three enzymes (E1, E2, and E3) that ultimately transfer a ubiquitin thiolester intermediate to a protein target. The E2 responsible for catalysis of lysine-63 linked polyubiquitination is a protein heterodimer consisting of a canonical E2 known as Ubc13, and an E2-like protein, or ubiquitin conjugating enzyme variant (UEV), known as Mms2. We have determined the solution structure of the complex formed by human Mms2 and ubiquitin using high resolution, solution state nuclear magnetic resonance (NMR) spectroscopy. The structure of the Mms2-Ub complex provides important insights into the molecular basis underlying the catalysis of lysine-63 linked polyubiquitin chains.
About this Structure
1ZGU is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structural basis for non-covalent interaction between ubiquitin and the ubiquitin conjugating enzyme variant human MMS2., Lewis MJ, Saltibus LF, Hau DD, Xiao W, Spyracopoulos L, J Biomol NMR. 2006 Feb;34(2):89-100. PMID:16518696 Page seeded by OCA on Sat May 3 17:36:25 2008
