| Literature DB >> 3348775 |
M Murata1, K Onomichi, Y Eto, H Shibai, M Muramatsu.
Abstract
Plasmid DNA containing EDF subunit cDNA and mouse dihydrofolate reductase (DHFR) cDNA was transfected into CHO DHFR- cells by the calcium-phosphate method. DHFR positive transformants secreted recombinant EDF (r-EDF) constitutively in an active form and accumulated it in the conditioned medium. Furthermore, cells which were resistant to methotrexate (MTX : 0.5 microM) secreted r-EDF up to 1 microgram/ml. r-EDF was identical to natural EDF (n-EDF) produced by human acute monocytic leukemia cell line, THP-1, as regards its dimeric structure and a biological activity.Entities:
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Year: 1988 PMID: 3348775 DOI: 10.1016/0006-291x(88)90583-9
Source DB: PubMed Journal: Biochem Biophys Res Commun ISSN: 0006-291X Impact factor: 3.575