This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1doa

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 07:47, 13 December 2017

Structure of the rho family gtp-binding protein cdc42 in complex with the multifunctional regulator rhogdi

Structural highlights

1doa is a 2 chain structure with sequence from Bovin and Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
NonStd Res:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[CDC42_HUMAN] Plasma membrane-associated small GTPase which cycles between an active GTP-bound and an inactive GDP-bound state. In active state binds to a variety of effector proteins to regulate cellular responses. Involved in epithelial cell polarization processes. Regulates the bipolar attachment of spindle microtubules to kinetochores before chromosome congression in metaphase. Plays a role in the extension and maintenance of the formation of thin, actin-rich surface projections called filopodia. Mediates CDC42-dependent cell migration.^[1] ^[2] ^[3] [GDIR1_BOVIN] In glioma cells, inhibits cell migration and invasion by mediating the signals of SEMA5A and PLXNB3 that lead to inactivation of RAC1 (By similarity). Regulates the GDP/GTP exchange reaction of the Rho proteins by inhibiting the dissociation of GDP from them, and the subsequent binding of GTP to them.^[4] ^[5]

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 RhoGDI proteins serve as key multifunctional regulators of Rho family GTP-binding proteins. The 2.6 A X-ray crystallographic structure of the Cdc42/RhoGDI complex reveals two important sites of interaction between GDI and Cdc42. First, the amino-terminal regulatory arm of the GDI binds to the switch I and II domains of Cdc42 leading to the inhibition of both GDP dissociation and GTP hydrolysis. Second, the geranylgeranyl moiety of Cdc42 inserts into a hydrophobic pocket within the immunoglobulin-like domain of the GDI molecule leading to membrane release. The structural data demonstrate how GDIs serve as negative regulators of small GTP-binding proteins and how the isoprenoid moiety is utilized in this critical regulatory interaction.

Structure of the Rho family GTP-binding protein Cdc42 in complex with the multifunctional regulator RhoGDI.,Hoffman GR, Nassar N, Cerione RA Cell. 2000 Feb 4;100(3):345-56. PMID:10676816^[6]

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

References

↑ Gauthier-Campbell C, Bredt DS, Murphy TH, El-Husseini Ael-D. Regulation of dendritic branching and filopodia formation in hippocampal neurons by specific acylated protein motifs. Mol Biol Cell. 2004 May;15(5):2205-17. Epub 2004 Feb 20. PMID:14978216 doi:10.1091/mbc.E03-07-0493
↑ Oceguera-Yanez F, Kimura K, Yasuda S, Higashida C, Kitamura T, Hiraoka Y, Haraguchi T, Narumiya S. Ect2 and MgcRacGAP regulate the activation and function of Cdc42 in mitosis. J Cell Biol. 2005 Jan 17;168(2):221-32. Epub 2005 Jan 10. PMID:15642749 doi:10.1083/jcb.200408085
↑ Modzelewska K, Newman LP, Desai R, Keely PJ. Ack1 mediates Cdc42-dependent cell migration and signaling to p130Cas. J Biol Chem. 2006 Dec 8;281(49):37527-35. Epub 2006 Oct 12. PMID:17038317 doi:10.1074/jbc.M604342200
↑ Fukumoto Y, Kaibuchi K, Hori Y, Fujioka H, Araki S, Ueda T, Kikuchi A, Takai Y. Molecular cloning and characterization of a novel type of regulatory protein (GDI) for the rho proteins, ras p21-like small GTP-binding proteins. Oncogene. 1990 Sep;5(9):1321-8. PMID:2120668
↑ Gosser YQ, Nomanbhoy TK, Aghazadeh B, Manor D, Combs C, Cerione RA, Rosen MK. C-terminal binding domain of Rho GDP-dissociation inhibitor directs N-terminal inhibitory peptide to GTPases. Nature. 1997 Jun 19;387(6635):814-9. PMID:9194563 doi:10.1038/42961
↑ Hoffman GR, Nassar N, Cerione RA. Structure of the Rho family GTP-binding protein Cdc42 in complex with the multifunctional regulator RhoGDI. Cell. 2000 Feb 4;100(3):345-56. PMID:10676816

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/1doa"

@@ Line 1: / Line 1: @@
 ==Structure of the rho family gtp-binding protein cdc42 in complex with the multifunctional regulator rhogdi==
 <StructureSection load='1doa' size='340' side='right' caption='[[1doa]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=GER:GERAN-8-YL+GERAN'>GER</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CMT:O-METHYLCYSTEINE'>CMT</scene></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=1doa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1doa OCA], [http://pdbe.org/1doa PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1doa RCSB], [http://www.ebi.ac.uk/pdbsum/1doa 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=1doa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1doa OCA], [http://pdbe.org/1doa PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1doa RCSB], [http://www.ebi.ac.uk/pdbsum/1doa PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1doa ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/do/1doa_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/do/1doa_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 28: / Line 29: @@
 </div>
 <div class="pdbe-citations 1doa" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[GTP-binding protein|GTP-binding protein]]
-*[[Guanine nucleotide dissociation inhibitor|Guanine nucleotide dissociation inhibitor]]
 == References ==
 <references/>

1doa

From Proteopedia

Revision as of 07:47, 13 December 2017

Structure of the rho family gtp-binding protein cdc42 in complex with the multifunctional regulator rhogdi

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox