title: Undifferentiated F9 embryonal carcinoma cells produce a short-chain collagen molecule.
abstract: The undifferentiated F9 embryonal carcinoma cells produce a unique collagen that decreases in amount during retinoic acid-induced differentiation of F9 cells into basement-membrane parietal endoderm. A bacterial-collagenase-sensitive protein of approx. 60,000 Da was resolved on polyacrylamide-gel electrophoresis. After pepsin digestion, two pepsin-resistant fragments containing hydroxyproline were demonstrated, suggesting that a portion of the molecule has a stable triple helix. The mRNA from the undifferentiated F9 cells translates a collagenase-sensitive protein with a molecular mass consistent with the 60,000 Da collagenous protein produced by undifferentiated F8 cells.
authors.affiliation: Collagen Research Laboratory, Veterans Administration Outpatient Clinic, Boston, MA 02108.
authors.forename: B D
authors.initials: BD
authors.lastname: Smith
authors.forename: C T
authors.initials: CT
authors.lastname: Baldwin
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002478:Cells, Cultured; D003094:Collagen / Q000096:biosynthesis* / Q000235:genetics; D004591:Electrophoresis, Polyacrylamide Gel; D054278:Embryonal Carcinoma Stem Cells; D003012:Microbial Collagenase / Q000378:metabolism; D014411:Neoplastic Stem Cells / Q000378:metabolism*; D014176:Protein Biosynthesis; D012333:RNA, Messenger / Q000378:metabolism
chemical_list: D012333:RNA, Messenger; D003094:Collagen; D003012:Microbial Collagenase