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[[Image:2jph.jpg|left|200px]]
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{{STRUCTURE_2jph|  PDB=2jph  |  SCENE=  }}
'''NMR solution structure of the Rho GTPase binding domain of human plexin-b1'''


==NMR solution structure of the Rho GTPase binding domain of human plexin-b1==
<StructureSection load='2jph' size='340' side='right'caption='[[2jph]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2jph]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JPH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2JPH FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2jph FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2jph OCA], [https://pdbe.org/2jph PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2jph RCSB], [https://www.ebi.ac.uk/pdbsum/2jph PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2jph ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PLXB1_HUMAN PLXB1_HUMAN] Receptor for SEMA4D. Plays a role in RHOA activation and subsequent changes of the actin cytoskeleton. Plays a role in axon guidance, invasive growth and cell migration.<ref>PMID:12198496</ref> <ref>PMID:12196628</ref> <ref>PMID:15210733</ref> <ref>PMID:19843518</ref> <ref>PMID:20877282</ref> <ref>PMID:21912513</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/jp/2jph_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/main_output.php?pdb_ID=2jph ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The plexin family of transmembrane receptors are important for axon guidance, angiogenesis, but also in cancer. Recently, plexin-B1 somatic missense mutations were found in both primary tumors and metastases of breast and prostate cancers, with several mutations mapping to the Rho GTPase binding domain (RBD) in the cytoplasmic region of the receptor. Here we present the NMR solution structure of this domain, confirming that the protein has both a ubiquitin-like fold and surface features. Oncogenic mutations T1795A and T1802A are located in a loop region, perturb the average structure locally, and have no effect on Rho GTPase binding affinity. Mutations L1815F and L1815P are located at the Rho GTPase binding site and are associated with a complete loss of binding for Rac1 and Rnd1. Both are found to disturb the conformation of the beta3-beta4 sheet and the orientation of surrounding side chains. Our study suggests that the oncogenic behavior of the mutants can be rationalized with reference to the structure of the RBD of plexin-B1.


==Overview==
Insights into oncogenic mutations of plexin-B1 based on the solution structure of the Rho GTPase binding domain.,Tong Y, Hota PK, Hamaneh MB, Buck M Structure. 2008 Feb;16(2):246-58. PMID:18275816<ref>PMID:18275816</ref>
The plexin family of transmembrane receptors are important for axon guidance, angiogenesis, but also in cancer. Recently, plexin-B1 somatic missense mutations were found in both primary tumors and metastases of breast and prostate cancers, with several mutations mapping to the Rho GTPase binding domain (RBD) in the cytoplasmic region of the receptor. Here we present the NMR solution structure of this domain, confirming that the protein has both a ubiquitin-like fold and surface features. Oncogenic mutations T1795A and T1802A are located in a loop region, perturb the average structure locally, and have no effect on Rho GTPase binding affinity. Mutations L1815F and L1815P are located at the Rho GTPase binding site and are associated with a complete loss of binding for Rac1 and Rnd1. Both are found to disturb the conformation of the beta3-beta4 sheet and the orientation of surrounding side chains. Our study suggests that the oncogenic behavior of the mutants can be rationalized with reference to the structure of the RBD of plexin-B1.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
2JPH is a [[Single protein]] structure of 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=2JPH OCA].
</div>
<div class="pdbe-citations 2jph" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Insights into oncogenic mutations of plexin-B1 based on the solution structure of the Rho GTPase binding domain., Tong Y, Hota PK, Hamaneh MB, Buck M, Structure. 2008 Feb;16(2):246-58. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/18275816 18275816]
*[[Plexin 3D structures|Plexin 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Buck, M.]]
[[Category: Buck M]]
[[Category: Tong, Y.]]
[[Category: Tong Y]]
[[Category: Protein]]
[[Category: Protein binding]]
[[Category: Signaling protein]]
[[Category: Ubiquitin fold]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 09:09:09 2008''

Latest revision as of 10:10, 20 December 2023

NMR solution structure of the Rho GTPase binding domain of human plexin-b1

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