5jd0

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==crystal structure of ARAP3 RhoGAP domain==
==crystal structure of ARAP3 RhoGAP domain==
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<StructureSection load='5jd0' size='340' side='right' caption='[[5jd0]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
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<StructureSection load='5jd0' size='340' side='right'caption='[[5jd0]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[5jd0]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5JD0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5JD0 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[5jd0]] 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=5JD0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5JD0 FirstGlance]. <br>
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</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5jcp|5jcp]]</td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
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<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=5jd0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5jd0 OCA], [http://pdbe.org/5jd0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5jd0 RCSB], [http://www.ebi.ac.uk/pdbsum/5jd0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5jd0 ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5jd0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5jd0 OCA], [https://pdbe.org/5jd0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5jd0 RCSB], [https://www.ebi.ac.uk/pdbsum/5jd0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5jd0 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/ARAP3_HUMAN ARAP3_HUMAN]] Phosphatidylinositol 3,4,5-trisphosphate-dependent GTPase-activating protein that modulates actin cytoskeleton remodeling by regulating ARF and RHO family members. Is activated by phosphatidylinositol 3,4,5-trisphosphate (PtdIns(3,4,5)P3) binding. Can be activated by phosphatidylinositol 3,4-bisphosphate (PtdIns(3,4,5)P2) binding, albeit with lower efficiency. Acts on ARF6, RAC1, RHOA and CDC42. Plays a role in the internalization of anthrax toxin.<ref>PMID:11804589</ref> <ref>PMID:15569923</ref>
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[https://www.uniprot.org/uniprot/ARAP3_HUMAN ARAP3_HUMAN] Phosphatidylinositol 3,4,5-trisphosphate-dependent GTPase-activating protein that modulates actin cytoskeleton remodeling by regulating ARF and RHO family members. Is activated by phosphatidylinositol 3,4,5-trisphosphate (PtdIns(3,4,5)P3) binding. Can be activated by phosphatidylinositol 3,4-bisphosphate (PtdIns(3,4,5)P2) binding, albeit with lower efficiency. Acts on ARF6, RAC1, RHOA and CDC42. Plays a role in the internalization of anthrax toxin.<ref>PMID:11804589</ref> <ref>PMID:15569923</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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ARAP3 (Arf-GAP with Rho-GAP domain, ANK repeat, and PH domain-containing protein 3) is unique for its dual specificity GAPs (GTPase-activating protein) activity for Arf6 (ADP-ribosylation factor 6) and RhoA (Ras homolog gene family member A) regulated by phosphatidylinositol 3,4,5-trisphosphate and a small GTPase Rap1-GTP and is involved in regulation of cell shape and adhesion. However, the molecular interface between the ARAP3-RhoGAP domain and RhoA is unknown, as is the substrates specificity of the RhoGAP domain. In this study, we solved the crystal structure of RhoA in complex with the RhoGAP domain of ARAP3. The structure of the complex presented a clear interface between the RhoGAP domain and RhoA. By analyzing the crystal structure and in combination with in vitro GTPase activity assays and isothermal titration calorimetry experiments, we identified the crucial residues affecting RhoGAP activity and substrates specificity among RhoA, Rac1 (Ras-related C3 botulinum toxin substrate 1), and Cdc42 (cell division control protein 42 homolog).
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Structural Basis for the Specific Recognition of RhoA by the Dual GTPase-activating Protein ARAP3.,Bao H, Li F, Wang C, Wang N, Jiang Y, Tang Y, Wu J, Shi Y J Biol Chem. 2016 Aug 5;291(32):16709-19. doi: 10.1074/jbc.M116.736140. Epub 2016, Jun 15. PMID:27311713<ref>PMID:27311713</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 5jd0" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Bao, H]]
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[[Category: Homo sapiens]]
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[[Category: Li, F]]
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[[Category: Large Structures]]
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[[Category: Shi, Y]]
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[[Category: Bao H]]
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[[Category: Wu, J]]
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[[Category: Li F]]
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[[Category: Arap3]]
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[[Category: Shi Y]]
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[[Category: Rhogap]]
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[[Category: Wu J]]
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[[Category: Signaling protein]]
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Current revision

crystal structure of ARAP3 RhoGAP domain

PDB ID 5jd0

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