3v2a: Difference between revisions

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[[Image:3v2a.png|left|200px]]
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{{STRUCTURE_3v2a|  PDB=3v2a  |  SCENE=  }}  
{{STRUCTURE_3v2a|  PDB=3v2a  |  SCENE=  }}  
===VEGFR-2/VEGF-A COMPLEX STRUCTURE===
===VEGFR-2/VEGF-A COMPLEX STRUCTURE===
{{ABSTRACT_PUBMED_22207738}}


==Disease==
[[http://www.uniprot.org/uniprot/VGFR2_HUMAN VGFR2_HUMAN]] Defects in KDR are associated with susceptibility to hemangioma capillary infantile (HCI) [MIM:[http://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. [[http://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:[http://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.


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==Function==
The line below this paragraph, {{ABSTRACT_PUBMED_22207738}}, adds the Publication Abstract to the page
[[http://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> [[http://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>  
(as it appears on PubMed at http://www.pubmed.gov), where 22207738 is the PubMed ID number.
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{{ABSTRACT_PUBMED_22207738}}


==About this Structure==
==About this Structure==
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==Reference==
==Reference==
<ref group="xtra">PMID:022207738</ref><references group="xtra"/>
<ref group="xtra">PMID:022207738</ref><references group="xtra"/><references/>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Receptor protein-tyrosine kinase]]
[[Category: Receptor protein-tyrosine kinase]]