View source for 6xvk


==Crystal structure of the KDR (VEGFR2) kinase domain in complex with a type-II inhibitor bearing an acrylamide==
<StructureSection load='6xvk' size='340' side='right'caption='[[6xvk]], [[Resolution|resolution]] 1.99&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6xvk]] is a 1 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=6XVK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6XVK FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.99&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=O3E:~{N}-(4,4-dimethyl-2-prop-1-ynyl-3,1-benzoxazin-6-yl)-2-[3-methoxy-5-(7-methoxyquinolin-4-yl)oxy-pyridin-2-yl]ethanamide'>O3E</scene></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=6xvk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6xvk OCA], [https://pdbe.org/6xvk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6xvk RCSB], [https://www.ebi.ac.uk/pdbsum/6xvk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6xvk ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/VGFR2_HUMAN VGFR2_HUMAN] Defects in KDR are associated with susceptibility to hemangioma capillary infantile (HCI) [MIM:[https://omim.org/entry/602089 602089]. HCI are benign, highly proliferative lesions involving aberrant localized growth of capillary endothelium. They are the most common tumor of infancy, occurring in up to 10% of all births. Hemangiomas tend to appear shortly after birth and show rapid neonatal growth for up to 12 months characterized by endothelial hypercellularity and increased numbers of mast cells. This phase is followed by slow involution at a rate of about 10% per year and replacement by fibrofatty stroma.<ref>PMID:11807987</ref> <ref>PMID:18931684</ref>   Note=Plays a major role in tumor angiogenesis. In case of HIV-1 infection, the interaction with extracellular viral Tat protein seems to enhance angiogenesis in Kaposi's sarcoma lesions.
== Function ==
[https://www.uniprot.org/uniprot/VGFR2_HUMAN VGFR2_HUMAN] Tyrosine-protein kinase that acts as a cell-surface receptor for VEGFA, VEGFC and VEGFD. Plays an essential role in the regulation of angiogenesis, vascular development, vascular permeability, and embryonic hematopoiesis. Promotes proliferation, survival, migration and differentiation of endothelial cells. Promotes reorganization of the actin cytoskeleton. Isoforms lacking a transmembrane domain, such as isoform 2 and isoform 3, may function as decoy receptors for VEGFA, VEGFC and/or VEGFD. Isoform 2 plays an important role as negative regulator of VEGFA- and VEGFC-mediated lymphangiogenesis by limiting the amount of free VEGFA and/or VEGFC and preventing their binding to FLT4. Modulates FLT1 and FLT4 signaling by forming heterodimers. Binding of vascular growth factors to isoform 1 leads to the activation of several signaling cascades. Activation of PLCG1 leads to the production of the cellular signaling molecules diacylglycerol and inositol 1,4,5-trisphosphate and the activation of protein kinase C. Mediates activation of MAPK1/ERK2, MAPK3/ERK1 and the MAP kinase signaling pathway, as well as of the AKT1 signaling pathway. Mediates phosphorylation of PIK3R1, the regulatory subunit of phosphatidylinositol 3-kinase, reorganization of the actin cytoskeleton and activation of PTK2/FAK1. Required for VEGFA-mediated induction of NOS2 and NOS3, leading to the production of the signaling molecule nitric oxide (NO) by endothelial cells. Phosphorylates PLCG1. Promotes phosphorylation of FYN, NCK1, NOS3, PIK3R1, PTK2/FAK1 and SRC.<ref>PMID:19668192</ref> <ref>PMID:1417831</ref> <ref>PMID:7929439</ref> <ref>PMID:9160888</ref> <ref>PMID:9837777</ref> <ref>PMID:9804796</ref> <ref>PMID:10600473</ref> <ref>PMID:10102632</ref> <ref>PMID:11387210</ref> <ref>PMID:12649282</ref> <ref>PMID:15026417</ref> <ref>PMID:15215251</ref> <ref>PMID:15962004</ref> <ref>PMID:16966330</ref> <ref>PMID:17303569</ref> <ref>PMID:19834490</ref> <ref>PMID:20179233</ref> <ref>PMID:20224550</ref> <ref>PMID:20705758</ref> <ref>PMID:10368301</ref> <ref>PMID:18529047</ref> <ref>PMID:20080685</ref> 

==See Also==
*[[3D structures of vascular endothelial growth factor receptor|3D structures of vascular endothelial growth factor receptor]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Barratt D]]
[[Category: Bernardes GJL]]
[[Category: Bodnarchuk MS]]
[[Category: Deery MJ]]
[[Category: Hoyt EA]]
[[Category: Kettle JG]]
[[Category: Lewis HJ]]
[[Category: McAuley K]]
[[Category: Ogg DJ]]
[[Category: Schimpl M]]
[[Category: Thomas M]]
[[Category: Ward RA]]
[[Category: Waring MJ]]