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4xsg

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Revision as of 14:11, 24 May 2017

The complex structure of C3cer exoenzyme and GTP bound RhoA (NADH-free state)

Structural highlights

4xsg is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Related:	4gy2, 4h03, 4xsh, 5bwm
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[RHOA_HUMAN] Regulates a signal transduction pathway linking plasma membrane receptors to the assembly of focal adhesions and actin stress fibers. Involved in a microtubule-dependent signal that is required for the myosin contractile ring formation during cell cycle cytokinesis. Plays an essential role in cleavage furrow formation. Required for the apical junction formation of keratinocyte cell-cell adhesion. Serves as a target for the yopT cysteine peptidase from Yersinia pestis, vector of the plague, and Yersinia pseudotuberculosis, which causes gastrointestinal disorders. Stimulates PKN2 kinase activity. May be an activator of PLCE1. Activated by ARHGEF2, which promotes the exchange of GDP for GTP. Essential for the SPATA13-mediated regulation of cell migration and adhesion assembly and disassembly. The MEMO1-RHOA-DIAPH1 signaling pathway plays an important role in ERBB2-dependent stabilization of microtubules at the cell cortex. It controls the localization of APC and CLASP2 to the cell membrane, via the regulation of GSK3B activity. In turn, membrane-bound APC allows the localization of the MACF1 to the cell membrane, which is required for microtubule capture and stabilization.^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7] ^[8]

Publication Abstract from PubMed

C3 exoenzyme is a mono-ADP-ribosyltransferase (ART) that catalyzes transfer of an ADP-ribose moiety from NAD+ to Rho GTPases. C3 has long been used to study the diverse regulatory functions of Rho GTPases. How C3 recognizes its substrate and ADP-ribosylation proceeds are still poorly understood. Crystal structures of C3-RhoA complex reveal that C3 recognizes RhoA via switch I, switch II and interswitch regions. In C3-RhoA(GTP) and C3-RhoA(GDP), switch I and II adopt the GDP and GTP conformations, respectively, which explains why C3 can ADP-ribosylate both nucleotide forms. Based on structural information, we successfully changed Cdc42 to active substrate with combined mutations in the C3-Rho GTPase interface. Moreover, the structure reflects the close relationship among Gln183 in the QXE-motif (C3), a modified Asn41 residue (RhoA) and NC1 of NAD(H), which suggests C3 is the prototype ART. The structures show directly for the first time that the ARTT-loop is the key to target protein recognition and also serve to bridge the gaps among independent studies of Rho GTPases and C3.

Rho GTPase Recognition by C3 Exoenzyme Based on C3-RhoA Complex Structure.,Toda A, Tsurumura T, Yoshida T, Tsumori Y, Tsuge H J Biol Chem. 2015 Jun 11. pii: jbc.M115.653220. PMID:26067270^[9]

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

References

↑ Quilliam LA, Lambert QT, Mickelson-Young LA, Westwick JK, Sparks AB, Kay BK, Jenkins NA, Gilbert DJ, Copeland NG, Der CJ. Isolation of a NCK-associated kinase, PRK2, an SH3-binding protein and potential effector of Rho protein signaling. J Biol Chem. 1996 Nov 15;271(46):28772-6. PMID:8910519
↑ Vincent S, Settleman J. The PRK2 kinase is a potential effector target of both Rho and Rac GTPases and regulates actin cytoskeletal organization. Mol Cell Biol. 1997 Apr;17(4):2247-56. PMID:9121475
↑ Wing MR, Snyder JT, Sondek J, Harden TK. Direct activation of phospholipase C-epsilon by Rho. J Biol Chem. 2003 Oct 17;278(42):41253-8. Epub 2003 Aug 4. PMID:12900402 doi:http://dx.doi.org/10.1074/jbc.M306904200
↑ Yuce O, Piekny A, Glotzer M. An ECT2-centralspindlin complex regulates the localization and function of RhoA. J Cell Biol. 2005 Aug 15;170(4):571-82. PMID:16103226 doi:10.1083/jcb.200501097
↑ Kamijo K, Ohara N, Abe M, Uchimura T, Hosoya H, Lee JS, Miki T. Dissecting the role of Rho-mediated signaling in contractile ring formation. Mol Biol Cell. 2006 Jan;17(1):43-55. Epub 2005 Oct 19. PMID:16236794 doi:10.1091/mbc.E05-06-0569
↑ Bristow JM, Sellers MH, Majumdar D, Anderson B, Hu L, Webb DJ. The Rho-family GEF Asef2 activates Rac to modulate adhesion and actin dynamics and thereby regulate cell migration. J Cell Sci. 2009 Dec 15;122(Pt 24):4535-46. doi: 10.1242/jcs.053728. Epub 2009, Nov 24. PMID:19934221 doi:10.1242/jcs.053728
↑ Zaoui K, Benseddik K, Daou P, Salaun D, Badache A. ErbB2 receptor controls microtubule capture by recruiting ACF7 to the plasma membrane of migrating cells. Proc Natl Acad Sci U S A. 2010 Oct 26;107(43):18517-22. doi:, 10.1073/pnas.1000975107. Epub 2010 Oct 11. PMID:20937854 doi:10.1073/pnas.1000975107
↑ Wallace SW, Magalhaes A, Hall A. The Rho target PRK2 regulates apical junction formation in human bronchial epithelial cells. Mol Cell Biol. 2011 Jan;31(1):81-91. doi: 10.1128/MCB.01001-10. Epub 2010 Oct 25. PMID:20974804 doi:10.1128/MCB.01001-10
↑ Toda A, Tsurumura T, Yoshida T, Tsumori Y, Tsuge H. Rho GTPase Recognition by C3 Exoenzyme Based on C3-RhoA Complex Structure. J Biol Chem. 2015 Jun 11. pii: jbc.M115.653220. PMID:26067270 doi:http://dx.doi.org/10.1074/jbc.M115.653220

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4xsg"

@@ Line 1: / Line 1: @@
 ==The complex structure of C3cer exoenzyme and GTP bound RhoA (NADH-free state)==
 <StructureSection load='4xsg' size='340' side='right' caption='[[4xsg]], [[Resolution|resolution]] 1.80&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=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GSP:5-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE'>GSP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4gy2|4gy2]], [[4h03|4h03]], [[4xsh|4xsh]], [[5bwm|5bwm]]</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=4xsg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xsg OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4xsg RCSB], [http://www.ebi.ac.uk/pdbsum/4xsg 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=4xsg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xsg OCA], [http://pdbe.org/4xsg PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4xsg RCSB], [http://www.ebi.ac.uk/pdbsum/4xsg PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4xsg ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 17: / Line 18: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4xsg" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Rho GTPase|Rho GTPase]]
 == References ==
 <references/>

4xsg

From Proteopedia

Revision as of 14:11, 24 May 2017

The complex structure of C3cer exoenzyme and GTP bound RhoA (NADH-free state)

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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