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3olm
From Proteopedia
(Difference between revisions)
(New page: '''Unreleased structure''' The entry 3olm is ON HOLD until Paper Publication Authors: Kim, H.C., Steffen, A., Chen, J., Huibregtse, J.M. Description: Structure and Function of a Ubiqui...) |
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| - | '''Unreleased structure''' | ||
| - | + | ==Structure and Function of a Ubiquitin Binding Site within the Catalytic Domain of a HECT Ubiquitin Ligase== | |
| + | <StructureSection load='3olm' size='340' side='right'caption='[[3olm]], [[Resolution|resolution]] 2.50Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3olm]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3OLM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3OLM FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.495Å</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=3olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3olm OCA], [https://pdbe.org/3olm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3olm RCSB], [https://www.ebi.ac.uk/pdbsum/3olm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3olm ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/RSP5_YEAST RSP5_YEAST] E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Component of a RSP5 ubiquitin ligase complex which specifies polyubiquitination and intracellular trafficking of the general amino acid permease GAP1 as well as other cell surface proteins like GAP1, FUR4, MAL61, PMA1 and STE2. The RSP5-BUL1/2 complex is also necessary for the heat-shock element (HSE)-mediated gene expression, nitrogen starvation GLN3-dependent transcription, pressure-induced differential regulation of the two tryptophan permeases TAT1 and TAT2 and sorting efficiency into multivesicular bodies. Also acts on RBP1. Plays a role in tolerance to o-dinitrobenzene. Involved in actin cytoskeleton organization and dynamics. Ubiquitinates the LAS17-binding proteins LSB1 and PIN3/LSB2 without directing them for degradation and affects LAS17 levels in a SLA1-dependent and LSB1/2-independent manner.<ref>PMID:7708685</ref> <ref>PMID:9931424</ref> <ref>PMID:9858558</ref> <ref>PMID:12163175</ref> <ref>PMID:12821147</ref> <ref>PMID:14560004</ref> <ref>PMID:15247235</ref> <ref>PMID:15020711</ref> <ref>PMID:15933713</ref> <ref>PMID:16864574</ref> <ref>PMID:17079730</ref> <ref>PMID:22000681</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The Rsp5 ubiquitin ligase contains a non-covalent binding site for ubiquitin within the amino-terminal lobe (N-lobe) of the HECT domain, and the X-ray crystal structure of the HECT-ubiquitin complex has been determined. Hydrophobic patch residues of ubiquitin (L8, I44, V70) were crucial for interaction with Rsp5, and amino-acid alterations at the Rsp5-binding interface resulted in defects in polyubiquitination. Our results support a model in which the N-lobe-binding site acts to localize and orient the distal end of the ubiquitin chain to promote conjugation of the next ubiquitin molecule. | ||
| - | + | Structure and function of a HECT domain ubiquitin-binding site.,Kim HC, Steffen AM, Oldham ML, Chen J, Huibregtse JM EMBO Rep. 2011 Mar 11. PMID:21399621<ref>PMID:21399621</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| + | </div> | ||
| + | <div class="pdbe-citations 3olm" style="background-color:#fffaf0;"></div> | ||
| - | + | ==See Also== | |
| + | *[[Ubiquitin protein ligase 3D structures|Ubiquitin protein ligase 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Saccharomyces cerevisiae]] | ||
| + | [[Category: Chen J]] | ||
| + | [[Category: Huibregtse JM]] | ||
| + | [[Category: Kim HC]] | ||
| + | [[Category: Steffen A]] | ||
Current revision
Structure and Function of a Ubiquitin Binding Site within the Catalytic Domain of a HECT Ubiquitin Ligase
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