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Biochem Biophys Res Commun. 1992 Sep 30;187(3):1579-86.

Identification of the KDR tyrosine kinase as a receptor for vascular endothelial cell growth factor.

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1
Medical Research Division, Lederle Laboratories, Pearl River, New York 10965.

Abstract

Vascular endothelial cell growth factor (VEGF), also known as vascular permeability factor, is an endothelial cell mitogen which stimulates angiogenesis. Here we report that a previously identified receptor tyrosine kinase gene, KDR, encodes a receptor for VEGF. Expression of KDR in CMT-3 (cells which do not contain receptors for VEGF) allows for saturable 125I-VEGF binding with high affinity (KD = 75 pM). Affinity cross-linking of 125I-VEGF to KDR-transfected CMT-3 cells results in specific labeling of two proteins of M(r) = 195 and 235 kDa. The KDR receptor tyrosine kinase shares structural similarities with a recently reported receptor for VEGF, flt, in a manner reminiscent of the similarities between the alpha and beta forms of the PDGF receptors.

PMID:
1417831
[Indexed for MEDLINE]
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