2p22

From Proteopedia

(Difference between revisions)

Revision as of 06:13, 7 February 2016

Structure of the Yeast ESCRT-I Heterotetramer Core

Structural highlights

2p22 is a 4 chain structure with sequence from Atcc 18824. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	2f66, 2f6m, 2caz, 2j9v, 2j9u
Gene:	VPS23 (ATCC 18824), VPT28 (ATCC 18824), VPS37 (ATCC 18824), Mvb12 (ATCC 18824)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[MVB12_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). Appears to be involved in cargo sorting and release of the ESCRT-I complex from the MVBs.^[1] [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.^[2] ^[3] ^[4] [SRN2_YEAST] Component of the ESCRT-I complex, a regulator of vesicular trafficking process. Required for normal endocytic and biosynthetic traffic to the yeast vacuole. [VPS28_YEAST] Component of the ESCRT-I complex, a regulator of vesicular trafficking process. Required for normal endocytic and biosynthetic traffic to the yeast vacuole.

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-I (ESCRT-I) complex, which is conserved from yeast to humans, directs the lysosomal degradation of ubiquitinated transmembrane proteins and the budding of the HIV virus. Yeast ESCRT-I contains four subunits, Vps23, Vps28, Vps37, and Mvb12. The crystal structure of the heterotetrameric ESCRT-I complex reveals a highly asymmetric complex of 1:1:1:1 subunit stoichiometry. The core complex is nearly 18 nm long and consists of a headpiece attached to a 13 nm stalk. The stalk is important for cargo sorting by ESCRT-I and is proposed to serve as a spacer regulating the correct disposition of cargo and other ESCRT components. Hydrodynamic constraints and crystallographic structures were used to generate a model of intact ESCRT-I in solution. The results show how ESCRT-I uses a combination of a rigid stalk and flexible tethers to interact with lipids, cargo, and other ESCRT complexes over a span of approximately 25 nm.

Molecular architecture and functional model of the complete yeast ESCRT-I heterotetramer.,Kostelansky MS, Schluter C, Tam YY, Lee S, Ghirlando R, Beach B, Conibear E, Hurley JH Cell. 2007 May 4;129(3):485-98. Epub 2007 Apr 19. PMID:17442384^[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Curtiss M, Jones C, Babst M. Efficient cargo sorting by ESCRT-I and the subsequent release of ESCRT-I from multivesicular bodies requires the subunit Mvb12. Mol Biol Cell. 2007 Feb;18(2):636-45. Epub 2006 Nov 29. PMID:17135292 doi:E06-07-0588
↑ 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
↑ Kostelansky MS, Schluter C, Tam YY, Lee S, Ghirlando R, Beach B, Conibear E, Hurley JH. Molecular architecture and functional model of the complete yeast ESCRT-I heterotetramer. Cell. 2007 May 4;129(3):485-98. Epub 2007 Apr 19. PMID:17442384 doi:10.1016/j.cell.2007.03.016

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2p22"

@@ Line 6: / Line 6: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2f66|2f66]], [[2f6m|2f6m]], [[2caz|2caz]], [[2j9v|2j9v]], [[2j9u|2j9u]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">VPS23 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), VPT28 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), VPS37 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), Mvb12 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</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=2p22 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p22 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2p22 RCSB], [http://www.ebi.ac.uk/pdbsum/2p22 PDBsum]</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=2p22 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p22 OCA], [http://pdbe.org/2p22 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2p22 RCSB], [http://www.ebi.ac.uk/pdbsum/2p22 PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 18: @@
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
-</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
+</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2p22 ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 28: / Line 28: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2p22" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

2p22

From Proteopedia

Revision as of 06:13, 7 February 2016

Structure of the Yeast ESCRT-I Heterotetramer Core

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

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Proteopedia Page Contributors and Editors (what is this?)

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