Gelatin-binding domain-specific anti-human plasma fibronectin Fab' inhibits fibronectin-mediated gelatin binding but not cell spreading.
نویسندگان
چکیده
منابع مشابه
Location of a gelatin-binding region of human plasma fibronectin.
Plasma fibronectin, which is also known as cold-insoluble globulin, consists of two polypeptide chains of approximately 250,000 daltons joined by disulfide bonds located near one end of the molecule. Proteolytic digestion of human plasma fibronectin and NHz-terminal sequence analysis of some of the fragments produced were used to locate the gelatin-binding region of fibronectin within the intac...
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We report the effect of Fab' (anti-60k) to a 60,000 mol wt gelatin binding domain of fibronectin (1981, J. Biol. Chem. 256:5583) on diploid fibroblast (IMR-90) extracellular fibronectin and collagen organization. Anti-60k Fab' did not inhibit IMR-90 attachment or proliferation in fibronectin-depleted medium. Fibroblasts cultured with preimmune Fab' deposited a dense extracellular network of fib...
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Divalent cation-dependent platelet adhesion to fibronectin (FN) is mediated by the integrin receptors alpha 5 beta 1 (GP Ic-IIa) and alpha IIb beta 3 (GP IIb-IIIa), which recognize the RGD (Arg-Gly-Asp) sequence in the cell-binding domain. However, FN can also support divalent cation-independent platelet adhesion. To determine which domain of FN mediates divalent cation-independent adhesion, pr...
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Studies have established that cryoprecipitates of the plasma of tumor patients contain a biological activity enhancing morphological cell transformation (transformation-enhancing factor; TEF) in cultures of chicken embryo fibroblasts infected with temperature-sensitive mutants of Rous sarcoma virus. We report here that similar TEF activity is effected by defined fragments of human plasma fibron...
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The present study demonstrates the ability of plasma fibronectin or cold-insoluble globulin (CIg) to promote the uptake of ' 251-labeled, gelatin-coated latex beads (g-Ltx*) by monolayers of peritoneal macrophages (PM) . The uptake of g-Ltx* by PM was enhanced by CIg in a concentration-dependent fashion and required the presence of heparin (10 U/ml) as an obligatory cofactor for maximal particl...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1981
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)69242-2