1vgh: Difference between revisions

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[[Image:1vgh.png|left|200px]]


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==HEPARIN-BINDING DOMAIN FROM VASCULAR ENDOTHELIAL GROWTH FACTOR, NMR, 20 STRUCTURES==
The line below this paragraph, containing "STRUCTURE_1vgh", creates the "Structure Box" on the page.
<StructureSection load='1vgh' size='340' side='right'caption='[[1vgh]]' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)  
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1vgh]] 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=1VGH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1VGH FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 20 models</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=1vgh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vgh OCA], [https://pdbe.org/1vgh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1vgh RCSB], [https://www.ebi.ac.uk/pdbsum/1vgh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1vgh ProSAT]</span></td></tr>
{{STRUCTURE_1vgh|  PDB=1vgh  |  SCENE=  }}
</table>
== Disease ==
[https://www.uniprot.org/uniprot/VEGFA_HUMAN VEGFA_HUMAN] Defects in VEGFA are a cause of susceptibility to microvascular complications of diabetes type 1 (MVCD1) [MIM:[https://omim.org/entry/603933 603933]. These are pathological conditions that develop in numerous tissues and organs as a consequence of diabetes mellitus. They include diabetic retinopathy, diabetic nephropathy leading to end-stage renal disease, and diabetic neuropathy. Diabetic retinopathy remains the major cause of new-onset blindness among diabetic adults. It is characterized by vascular permeability and increased tissue ischemia and angiogenesis.
== Function ==
[https://www.uniprot.org/uniprot/VEGFA_HUMAN VEGFA_HUMAN] Growth factor active in angiogenesis, vasculogenesis and endothelial cell growth. Induces endothelial cell proliferation, promotes cell migration, inhibits apoptosis and induces permeabilization of blood vessels. Binds to the FLT1/VEGFR1 and KDR/VEGFR2 receptors, heparan sulfate and heparin. NRP1/Neuropilin-1 binds isoforms VEGF-165 and VEGF-145. Isoform VEGF165B binds to KDR but does not activate downstream signaling pathways, does not activate angiogenesis and inhibits tumor growth.<ref>PMID:11427521</ref> <ref>PMID:15520188</ref> <ref>PMID:16489009</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/vg/1vgh_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1vgh ConSurf].
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== Publication Abstract from PubMed ==
BACKGROUND: Vascular endothelial growth factor (VEGF) is an endothelial cell-specific mitogen and is a potent angiogenic and vascular permeabilizing factor. VEGF is also an important mediator of pathological angiogenesis associated with cancer, rheumatoid arthritis and proliferative retinopathy. The binding of VEGF to its two known receptors, KDR and Flt-1, is modulated by cell-surface-associated heparin-like glycosaminoglycans and exogenous heparin or heparan sulfate. Heparin binding to VEGF165, the most abundantly expressed isoform of VEGF, has been localized to the carboxy-terminal 55 residues; plasmin cleavage of VEGF165 yields a homodimeric 110-residue amino-terminal receptor-binding domain (VEGF110) and two 55-residue carboxy-terminal heparin-binding fragments. The endothelial cell mitogenic potency of VEGF110 is decreased significantly relative to VEGF165, indicating that the heparin-binding domains are critical for stimulating endothelial cell proliferation. RESULTS: The solution structure of the 55-residue heparin-binding domain of VEGF165 has been solved using data from two-dimensional homonuclear and three-dimensional heteronuclear NMR spectroscopy. The structure has two subdomains, each containing two disulfide bridges and a short two-stranded antiparallel beta sheet; the carboxy-terminal subdomain also contains a short alpha helix. Hydrophobic interactions are limited to sidechains packing against the disulfide bridges. CONCLUSIONS: The heparin-binding domain of VEGF has no significant sequence or structural similarity to any known proteins and thus represents a novel heparin-binding domain. Most of the positively charged amino acid sidechains are localized on one side of the carboxy-terminal subdomain or on an adjacent disordered loop in the amino-terminal subdomain. The observed distribution of surface charges suggests that these residues constitute a heparin interaction site.


===HEPARIN-BINDING DOMAIN FROM VASCULAR ENDOTHELIAL GROWTH FACTOR, NMR, 20 STRUCTURES===
Solution structure of the heparin-binding domain of vascular endothelial growth factor.,Fairbrother WJ, Champe MA, Christinger HW, Keyt BA, Starovasnik MA Structure. 1998 May 15;6(5):637-48. PMID:9634701<ref>PMID:9634701</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 1vgh" style="background-color:#fffaf0;"></div>


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==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_9634701}}, adds the Publication Abstract to the page
*[[VEGF 3D Structures|VEGF 3D Structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 9634701 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_9634701}}
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</StructureSection>
==About this Structure==
1VGH is a 1 chain structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VGH OCA].
 
==Reference==
<ref group="xtra">PMID:9634701</ref><references group="xtra"/>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Champe, M A.]]
[[Category: Large Structures]]
[[Category: Christinger, H W.]]
[[Category: Champe MA]]
[[Category: Fairbrother, W J.]]
[[Category: Christinger HW]]
[[Category: Keyt, B A.]]
[[Category: Fairbrother WJ]]
[[Category: Starovasnik, M A.]]
[[Category: Keyt BA]]
[[Category: Angiogenesis]]
[[Category: Starovasnik MA]]
[[Category: Growth factor]]
[[Category: Heparin-binding]]
 
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