View source for 2orx


==Structural Basis for Ligand Binding and Heparin Mediated Activation of Neuropilin==
<StructureSection load='2orx' size='340' side='right'caption='[[2orx]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2orx]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ORX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ORX FirstGlance]. <br>
</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Nrp1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10116 Buffalo rat])</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=2orx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2orx OCA], [https://pdbe.org/2orx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2orx RCSB], [https://www.ebi.ac.uk/pdbsum/2orx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2orx ProSAT]</span></td></tr>
</table>
== Function ==
[[https://www.uniprot.org/uniprot/NRP1_RAT NRP1_RAT]] Receptor involved in the development of the cardiovascular system, in angiogenesis, in the formation of certain neuronal circuits and in organogenesis outside the nervous system. It mediates the chemorepulsant activity of semaphorins. It binds to semaphorin 3A, the PLGF-2 isoform of PGF, the VEGF-165 isoform of VEGF and VEGF-B. Coexpression with KDR results in increased VEGF-165 binding to KDR as well as increased chemotaxis. It may regulate VEGF-induced angiogenesis (By similarity). 
== 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/or/2orx_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=2orx ConSurf].
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== Publication Abstract from PubMed ==
Neuropilin (Nrp) is a cell surface receptor with essential roles in angiogenesis and axon guidance. Interactions between Nrp and the positively charged C termini of its ligands, VEGF and semaphorin, are mediated by Nrp domains b1 and b2, which share homology to coagulation factor domains. We report here the crystal structure of the tandem b1 and b2 domains of Nrp-1 (N1b1b2) and show that they form a single structural unit. Cocrystallization of N1b1b2 with Tuftsin, a peptide mimic of the VEGF C terminus, reveals the site of interaction with the basic tail of VEGF on the b1 domain. We also show that heparin promotes N1b1b2 dimerization and map the heparin binding site on N1b1b2. These results provide a detailed picture of interactions at the core of the Nrp signaling complex and establish a molecular basis for the synergistic effects of heparin on Nrp-mediated signaling.

Structural basis for ligand and heparin binding to neuropilin B domains.,Vander Kooi CW, Jusino MA, Perman B, Neau DB, Bellamy HD, Leahy DJ Proc Natl Acad Sci U S A. 2007 Apr 10;104(15):6152-7. Epub 2007 Apr 3. PMID:17405859<ref>PMID:17405859</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 2orx" style="background-color:#fffaf0;"></div>

==See Also==
*[[Neuropilin|Neuropilin]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Buffalo rat]]
[[Category: Large Structures]]
[[Category: Bellamy, H D]]
[[Category: Jusino, M A]]
[[Category: Kooi, C W.Vander]]
[[Category: Leahy, D J]]
[[Category: Neau, D B]]
[[Category: Perman, B]]
[[Category: Membrane protein]]
[[Category: Neuropilin]]
[[Category: Signaling protein]]
[[Category: Tuftsin]]
[[Category: Vegf]]