Isolation, Purification and Characterization of Intact and Pepsin-Derived Fragments of Laminin from Human Placenta
- 1 January 1985
- journal article
- research article
- Published by Taylor & Francis in Connective Tissue Research
- Vol. 14 (1), 31-40
- https://doi.org/10.3109/03008208509089841
Abstract
Human laminin. in intact form and as pepsin cleaved fragments, was isolated and purified from placenta. The intact laminin was extracted by 1-M NaCI at neutral pH in the presence of 10-mM EDTA and 3% Triton X-100. This recovered material was purified by DEAE-cellulose and agarose gel chromatography. The laminin fragments PI. P2 and P3 were prepared by limited pepsin proteolysis. Antibodies were prepared against fragment P2. The laminin and its fragments were characterized by amino acid composition. NaDoSO4-polyacrylamide gel electrophoresis and immunochemistry. Results from these studies show that substantial quantities of laminin can be prepared from placenta in this manner.Keywords
This publication has 14 references indexed in Scilit:
- Isolation of laminin from human placental basement membranes: Amnion, chorion and chorionic microvesselsBiochemical and Biophysical Research Communications, 1983
- Isolation and characterization of type IV procollagen, laminin, and heparan sulfate proteoglycan from the EHS sarcomaBiochemistry, 1982
- Isolation of laminin by affinity chromatography on immobilized Griffonia simplicifolia I lectinFEBS Letters, 1982
- Studies on the Biosynthesis of Laminin by Murine Parietal Endoderm CellsEuropean Journal of Biochemistry, 1981
- Shapes, domain organizations and flexibility of laminin and fibronectin, two multifunctional proteins of the extracellular matrixJournal of Molecular Biology, 1981
- Incorporation into Reichert's membrane of laminin-like extracellular proteins synthesized by parietal endoderm cells of the mouse embryoDevelopmental Biology, 1980
- Laminin-like glycoproteins in extracellular matrix of endodermal cellsArchives of Biochemistry and Biophysics, 1980
- Enzyme-linked immunoassay (ELISA) for connective tissue componentsAnalytical Biochemistry, 1980
- Properties of a basement membrane-related glycoprotein synthesized in culture by a mouse embryonal carcinoma-derived cell lineCell, 1979
- Cleavage of Structural Proteins during the Assembly of the Head of Bacteriophage T4Nature, 1970