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| | ==A complex of the Vps23 UEV with ubiquitin== | | ==A complex of the Vps23 UEV with ubiquitin== |
| - | <StructureSection load='1uzx' size='340' side='right' caption='[[1uzx]], [[Resolution|resolution]] 1.85Å' scene=''> | + | <StructureSection load='1uzx' size='340' side='right'caption='[[1uzx]], [[Resolution|resolution]] 1.85Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1uzx]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824] and [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UZX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1UZX FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1uzx]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UZX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UZX FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.85Å</td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=MSO:SELENOMETHIONINE+SELENOXIDE'>MSO</scene></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=MSO:SELENOMETHIONINE+SELENOXIDE'>MSO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1aar|1aar]], [[1c3t|1c3t]], [[1cmx|1cmx]], [[1d3z|1d3z]], [[1f9j|1f9j]], [[1fxt|1fxt]], [[1g6j|1g6j]], [[1gjz|1gjz]], [[1nbf|1nbf]], [[1ogw|1ogw]], [[1p3q|1p3q]], [[1tbe|1tbe]], [[1ubi|1ubi]], [[1ubq|1ubq]], [[1ud7|1ud7]]</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=1uzx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uzx OCA], [https://pdbe.org/1uzx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1uzx RCSB], [https://www.ebi.ac.uk/pdbsum/1uzx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1uzx ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1uzx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uzx OCA], [http://pdbe.org/1uzx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1uzx RCSB], [http://www.ebi.ac.uk/pdbsum/1uzx PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1uzx ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/STP22_YEAST STP22_YEAST] Component of the ESCRT-I complex, a regulator of vesicular trafficking process. Binds to ubiquitinated cargo proteins and is required for the sorting of endocytic ubiquitinated cargos into multivesicular bodies (MVBs). Mediates the association to the ESCRT-0 complex. Required for vacuolar targeting of temperature-sensitive plasma membrane proteins STE2 and CAN1.<ref>PMID:10207082</ref> <ref>PMID:11208108</ref> <ref>PMID:11511343</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
| | Check<jmol> | | Check<jmol> |
| | <jmolCheckbox> | | <jmolCheckbox> |
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/uz/1uzx_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/uz/1uzx_consurf.spt"</scriptWhenChecked> |
| - | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> |
| | <text>to colour the structure by Evolutionary Conservation</text> | | <text>to colour the structure by Evolutionary Conservation</text> |
| | </jmolCheckbox> | | </jmolCheckbox> |
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| | </div> | | </div> |
| | <div class="pdbe-citations 1uzx" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 1uzx" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[Vacuolar protein sorting-associated protein 3D structures|Vacuolar protein sorting-associated protein 3D structures]] |
| | + | *[[3D structures of ubiquitin|3D structures of ubiquitin]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Atcc 18824]] | |
| | [[Category: Bos taurus]] | | [[Category: Bos taurus]] |
| - | [[Category: Teo, H]] | + | [[Category: Large Structures]] |
| - | [[Category: Williams, R L]] | + | [[Category: Saccharomyces cerevisiae]] |
| - | [[Category: E2 variant]] | + | [[Category: Teo H]] |
| - | [[Category: Escrt-i]] | + | [[Category: Williams RL]] |
| - | [[Category: Mvb sorting]]
| + | |
| - | [[Category: Nuclear protein]]
| + | |
| - | [[Category: Polyprotein]]
| + | |
| - | [[Category: Protein transport]]
| + | |
| - | [[Category: Transport]]
| + | |
| - | [[Category: Transport protein]]
| + | |
| - | [[Category: Transport protein-complex]]
| + | |
| - | [[Category: Ubl conjugation pathway]]
| + | |
| - | [[Category: Ubquitin]]
| + | |
| - | [[Category: Uev]]
| + | |
| - | [[Category: Vps23]]
| + | |
| Structural highlights
Function
STP22_YEAST Component of the ESCRT-I complex, a regulator of vesicular trafficking process. Binds to ubiquitinated cargo proteins and is required for the sorting of endocytic ubiquitinated cargos into multivesicular bodies (MVBs). Mediates the association to the ESCRT-0 complex. Required for vacuolar targeting of temperature-sensitive plasma membrane proteins STE2 and CAN1.[1] [2] [3]
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
The endosomal sorting complex required for transport (ESCRT-I) is a 350-kDa complex of three proteins, Vps23, Vps28, and Vps37. The N-terminal ubiquitin-conjugating enzyme E2 variant (UEV) domain of Vps23 is required for sorting ubiquitinated proteins into the internal vesicles of multivesicular bodies. UEVs are homologous to E2 ubiquitin ligases but lack the conserved cysteine residue required for catalytic activity. The crystal structure of the yeast Vps23 UEV in a complex with ubiquitin (Ub) shows the detailed interactions made with the bound Ub. Compared with the solution structure of the Tsg101 UEV (the human homologue of Vps23) in the absence of Ub, two loops that are conserved among the ESCRT-I UEVs move toward each other to grip the Ub in a pincer-like grasp. The contacts with the UEV encompass two adjacent patches on the surface of the Ub, one containing several hydrophobic residues, including Ile-8(Ub), Ile-44(Ub), and Val-70(Ub), and the second containing a hydrophilic patch including residues Asn-60(Ub), Gln-62(Ub), Glu-64(Ub). The hydrophobic Ub patch interacting with the Vps23 UEV overlaps the surface of Ub interacting with the Vps27 ubiquitin-interacting motif, suggesting a sequential model for ubiquitinated cargo binding by these proteins. In contrast, the hydrophilic patch encompasses residues uniquely interacting with the ESCRT-I UEV. The structure provides a detailed framework for design of mutants that can specifically affect ESCRT-I-dependent sorting of ubiquitinated cargo without affecting Vps27-mediated delivery of cargo to endosomes.
Structural insights into endosomal sorting complex required for transport (ESCRT-I) recognition of ubiquitinated proteins.,Teo H, Veprintsev DB, Williams RL J Biol Chem. 2004 Jul 2;279(27):28689-96. Epub 2004 Mar 24. PMID:15044434[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Li Y, Kane T, Tipper C, Spatrick P, Jenness DD. Yeast mutants affecting possible quality control of plasma membrane proteins. Mol Cell Biol. 1999 May;19(5):3588-99. PMID:10207082
- ↑ Babst M, Odorizzi G, Estepa EJ, Emr SD. Mammalian tumor susceptibility gene 101 (TSG101) and the yeast homologue, Vps23p, both function in late endosomal trafficking. Traffic. 2000 Mar;1(3):248-58. PMID:11208108
- ↑ Katzmann DJ, Babst M, Emr SD. Ubiquitin-dependent sorting into the multivesicular body pathway requires the function of a conserved endosomal protein sorting complex, ESCRT-I. Cell. 2001 Jul 27;106(2):145-55. PMID:11511343
- ↑ Teo H, Veprintsev DB, Williams RL. Structural insights into endosomal sorting complex required for transport (ESCRT-I) recognition of ubiquitinated proteins. J Biol Chem. 2004 Jul 2;279(27):28689-96. Epub 2004 Mar 24. PMID:15044434 doi:http://dx.doi.org/10.1074/jbc.M400023200
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