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2ot3

From Proteopedia

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Current revision

Crystal structure of rabex-5 VPS9 domain in complex with nucleotide free RAB21

Structural highlights

2ot3 is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.1Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

RABX5_HUMAN Rab effector protein acting as linker between gamma-adaptin, RAB4A or RAB5A. Involved in endocytic membrane fusion and membrane trafficking of recycling endosomes. Stimulates nucleotide exchange on RAB5A. Can act as a ubiquitin ligase (By similarity).^[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

RABEX-5 and other exchange factors with VPS9 domains regulate endocytic trafficking through activation of the Rab family GTPases RAB5, RAB21 and RAB22. Here we report the crystal structure of the RABEX-5 catalytic core in complex with nucleotide-free RAB21, a key intermediate in the exchange reaction pathway. The structure reveals how VPS9 domain exchange factors recognize Rab GTPase substrates, accelerate GDP release and stabilize the nucleotide-free conformation. We further identify an autoinhibitory element in a predicted amphipathic helix located near the C terminus of the VPS9 domain. The autoinhibitory element overlaps with the binding site for the multivalent effector RABAPTIN-5 and potently suppresses the exchange activity of RABEX-5. Autoinhibition can be partially reversed by mutation of conserved residues on the nonpolar face of the predicted amphipathic helix or by assembly of the complex with RABAPTIN-5.

Structural basis for Rab GTPase activation by VPS9 domain exchange factors.,Delprato A, Lambright DG Nat Struct Mol Biol. 2007 May;14(5):406-12. Epub 2007 Apr 22. PMID:17450153^[4]

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

References

↑ Horiuchi H, Lippe R, McBride HM, Rubino M, Woodman P, Stenmark H, Rybin V, Wilm M, Ashman K, Mann M, Zerial M. A novel Rab5 GDP/GTP exchange factor complexed to Rabaptin-5 links nucleotide exchange to effector recruitment and function. Cell. 1997 Sep 19;90(6):1149-59. PMID:9323142
↑ Lippe R, Miaczynska M, Rybin V, Runge A, Zerial M. Functional synergy between Rab5 effector Rabaptin-5 and exchange factor Rabex-5 when physically associated in a complex. Mol Biol Cell. 2001 Jul;12(7):2219-28. PMID:11452015
↑ Delprato A, Merithew E, Lambright DG. Structure, exchange determinants, and family-wide rab specificity of the tandem helical bundle and Vps9 domains of Rabex-5. Cell. 2004 Sep 3;118(5):607-17. PMID:15339665 doi:10.1016/j.cell.2004.08.009
↑ Delprato A, Lambright DG. Structural basis for Rab GTPase activation by VPS9 domain exchange factors. Nat Struct Mol Biol. 2007 May;14(5):406-12. Epub 2007 Apr 22. PMID:17450153 doi:10.1038/nsmb1232

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2ot3"

Categories: Homo sapiens | Large Structures | Delprato A | Lambright D

@@ Line 1: / Line 1: @@
 ==Crystal structure of rabex-5 VPS9 domain in complex with nucleotide free RAB21==
-<StructureSection load='2ot3' size='340' side='right' caption='[[2ot3]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
+<StructureSection load='2ot3' size='340' side='right'caption='[[2ot3]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2ot3]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OT3 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2OT3 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2ot3]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OT3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OT3 FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1txu|1txu]], [[1z0i|1z0i]]</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]] 2.1&#8491;</td></tr>
-<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">RABGEF1, RABEX5 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), RAB21, KIAA0118 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</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=2ot3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ot3 OCA], [https://pdbe.org/2ot3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ot3 RCSB], [https://www.ebi.ac.uk/pdbsum/2ot3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ot3 ProSAT]</span></td></tr>
-<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ot3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ot3 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2ot3 RCSB], [http://www.ebi.ac.uk/pdbsum/2ot3 PDBsum]</span></td></tr>
+</table>
-<table>
+== Function ==
+[https://www.uniprot.org/uniprot/RABX5_HUMAN RABX5_HUMAN] Rab effector protein acting as linker between gamma-adaptin, RAB4A or RAB5A. Involved in endocytic membrane fusion and membrane trafficking of recycling endosomes. Stimulates nucleotide exchange on RAB5A. Can act as a ubiquitin ligase (By similarity).<ref>PMID:9323142</ref> <ref>PMID:11452015</ref> <ref>PMID:15339665</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ot/2ot3_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ot/2ot3_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <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=2ot3 ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 25: / Line 27: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2ot3" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Rab5 GDP/GTP exchange factor|Rab5 GDP/GTP exchange factor]]
 == References ==
 <references/>
@@ Line 30: / Line 36: @@
 </StructureSection>
 [[Category: Homo sapiens]]
-[[Category: Delprato, A.]]
+[[Category: Large Structures]]
-[[Category: Lambright, D.]]
+[[Category: Delprato A]]
-[[Category: Protein transport]]
+[[Category: Lambright D]]
-[[Category: Rab21]]
-[[Category: Rabex-5]]
-[[Category: Vesicular traffic]]
-[[Category: Vps9 domain]]

2ot3

From Proteopedia

Current revision

Crystal structure of rabex-5 VPS9 domain in complex with nucleotide free RAB21

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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