Fibronectin-binding 36 kDa protein in human fibroblasts.
A 36 kDa fibronectin-binding protein was identified from electrophoretically separated proteins of the deoxycholate-soluble fraction of cultured fibroblasts by blotting with fibronectin and using poly- or monoclonal antibodies and immunoperoxidase staining to detect the bound fibronectin. The 36 kDa protein was purified by preparative electrophoresis and used to raise specific antibodies. Solid-phase 36 kDa protein bound plasma and fibroblast fibronectins equally well. The 36 kDa protein is an amphipathic protein with pI 5.9. It is monomeric with a tendency to dimerize and appears to be distinct from the cell surface fibronectin receptors which interact with the Arg-Gly-Asp recognition site in the fibronectin molecule.
D002478:Cells, Cultured; D005347:Fibroblasts / Q000032:analysis; D005353:Fibronectins / Q000378:metabolism; D006801:Humans; D007124:Immunoenzyme Techniques; D008970:Molecular Weight; D017469:Receptors, Fibronectin; D011971:Receptors, Immunologic / Q000032:analysis / Q000276:immunology / Q000302:isolation & purification*
D005353:Fibronectins; D017469:Receptors, Fibronectin; D011971:Receptors, Immunologic