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| | ==Solution structure of human ubiquitin conjugating enzyme Ube2g2== | | ==Solution structure of human ubiquitin conjugating enzyme Ube2g2== |
| - | <StructureSection load='2kly' size='340' side='right'caption='[[2kly]], [[NMR_Ensembles_of_Models | 10 NMR models]]' scene=''> | + | <StructureSection load='2kly' size='340' side='right'caption='[[2kly]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2kly]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KLY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2KLY FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2kly]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KLY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2KLY FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">UBE2G2 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Ubiquitin--protein_ligase Ubiquitin--protein ligase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.2.19 6.3.2.19] </span></td></tr>
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| | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2kly FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2kly OCA], [https://pdbe.org/2kly PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2kly RCSB], [https://www.ebi.ac.uk/pdbsum/2kly PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2kly ProSAT]</span></td></tr> | | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2kly FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2kly OCA], [https://pdbe.org/2kly PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2kly RCSB], [https://www.ebi.ac.uk/pdbsum/2kly PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2kly ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/UB2G2_HUMAN UB2G2_HUMAN]] Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In vitro catalyzes 'Lys-48'-linked polyubiquitination. Involved in endoplasmic reticulum-associated degradation (ERAD).<ref>PMID:20061386</ref> <ref>PMID:22607976</ref>
| + | [https://www.uniprot.org/uniprot/UB2G2_HUMAN UB2G2_HUMAN] Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In vitro catalyzes 'Lys-48'-linked polyubiquitination. Involved in endoplasmic reticulum-associated degradation (ERAD).<ref>PMID:20061386</ref> <ref>PMID:22607976</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Ubiquitin--protein ligase]]
| + | [[Category: Bocik W]] |
| - | [[Category: Bocik, W]] | + | [[Category: Ju T]] |
| - | [[Category: Ju, T]] | + | [[Category: Majumdar A]] |
| - | [[Category: Majumdar, A]] | + | [[Category: Tolman JR]] |
| - | [[Category: Tolman, J R]] | + | |
| - | [[Category: Alpha beta fold]]
| + | |
| - | [[Category: Atp-binding]]
| + | |
| - | [[Category: Ligase]]
| + | |
| - | [[Category: Nucleotide-binding]]
| + | |
| - | [[Category: Ubl conjugation pathway]]
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| Structural highlights
Function
UB2G2_HUMAN Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In vitro catalyzes 'Lys-48'-linked polyubiquitination. Involved in endoplasmic reticulum-associated degradation (ERAD).[1] [2]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Ube2g2 is an E2 enzyme which functions as part of the endoplasmic reticulum-associated degradation (ERAD) pathway responsible for identification and degradation of misfolded proteins in the endoplasmic reticulum. In tandem with a cognate E3 ligase, Ube2g2 assembles K48-linked polyubiquitin chains and then transfers them to substrate, leading ultimately to proteasomal degradation of the polyubiquitin-tagged substrate. We report here the solution structure and backbone dynamics of Ube2g2 solved by nuclear magnetic resonance spectroscopy. Although the solution structure agrees well with crystallographic structures for the E2 core, catalytically important loops (encompassing residues 95-107 and 130-135) flanking the active site cysteine are poorly defined. (15)N spin relaxation and residual dipolar coupling analysis directly demonstrates that these two loops are highly dynamic in solution. These results suggest that Ube2g2 requires one or more of its protein partners, such as cognate E3, acceptor ubiquitin substrate or thiolester-linked donor ubiquitin, to assume its catalytically relevant conformation. Within the NMR structural ensemble, interactions were observed between His94 and the highly mobile loop residues Asp98 and Asp99, supporting a possible role for His94 as a general base activated by the carboxylate side-chains of Asp98 or Asp99.
Solution structure and dynamics of human ubiquitin conjugating enzyme Ube2g2.,Ju T, Bocik W, Majumdar A, Tolman JR Proteins. 2010 Apr;78(5):1291-301. PMID:20014027[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ David Y, Ziv T, Admon A, Navon A. The E2 ubiquitin conjugating enzymes direct polyubiquitination to preferred lysines. J Biol Chem. 2010 Jan 8. PMID:20061386 doi:M109.089003
- ↑ Sato T, Sako Y, Sho M, Momohara M, Suico MA, Shuto T, Nishitoh H, Okiyoneda T, Kokame K, Kaneko M, Taura M, Miyata M, Chosa K, Koga T, Morino-Koga S, Wada I, Kai H. STT3B-dependent posttranslational N-glycosylation as a surveillance system for secretory protein. Mol Cell. 2012 Jul 13;47(1):99-110. doi: 10.1016/j.molcel.2012.04.015. Epub 2012 , May 17. PMID:22607976 doi:10.1016/j.molcel.2012.04.015
- ↑ Ju T, Bocik W, Majumdar A, Tolman JR. Solution structure and dynamics of human ubiquitin conjugating enzyme Ube2g2. Proteins. 2010 Apr;78(5):1291-301. PMID:20014027 doi:10.1002/prot.22648
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