| Literature DB >> 7939629 |
M H Wang1, C Ronsin, M C Gesnel, L Coupey, A Skeel, E J Leonard, R Breathnach.
Abstract
Macrophage-stimulating protein (MSP) is a member of the hepatocyte growth factor-scatter factor (HGF-SF) family. Labeled MSP bound to Madin-Darby canine kidney (MDCK) cells transfected with complementary DNA encoding Ron, a cell membrane protein tyrosine kinase. Cross-linking of 125I-labeled MSP to transfected cells (MDCK-RE7 cells) and immunoprecipitation by antibodies to Ron revealed a 220-kilodalton complex, a size consistent with that of MSP (80 kilodaltons) cross-linked to the beta chain of Ron (150 kilodaltons). The binding of 125I-labeled MSP to MDCK-RE7 cells was inhibited by unlabeled MSP, but not by HGF-SF. MSP caused phosphorylation of the beta chain of Ron and induced migration of MDCK-RE7 cells. These results establish the ron gene product as a specific cell-surface receptor for MSP.Entities:
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Year: 1994 PMID: 7939629 DOI: 10.1126/science.7939629
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728