| Literature DB >> 2846538 |
A Ostman1, L Rall, A Hammacher, M A Wormstead, D Coit, P Valenzuela, C Betsholtz, B Westermark, C H Heldin.
Abstract
A Chinese hamster ovary cell line that stably expresses transfected human platelet-derived growth factor (PDGF) A and B chain precursors was established. All three dimeric combinations of PDGF chains were produced by this cell line; their biosynthesis, assembly, and processing were followed by pulse-chase analyses. PDGF-AA, PDGF-AB, and PDGF-BB were processed to Mr values of about 30,000 and were accumulated in these forms in the medium. In addition, PDGF-BB was further processed to a 24-kDa component, which remained cell-associated. The major secreted component was PDGF-AB, which was purified and shown to have structural and functional characteristics indistinguishable from PDGF-AB purified from human platelets.Entities:
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Year: 1988 PMID: 2846538
Source DB: PubMed Journal: J Biol Chem ISSN: 0021-9258 Impact factor: 5.157