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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Fibulin, a novel protein that interacts with the fibronectin receptor beta subunit cytoplasmic domain.

A 100 kd protein was isolated from tissue and cell extracts by affinity chromatography on a synthetic peptide representing the cytoplasmic domain of the fibronectin receptor beta subunit. The 100 kd protein also bound to native fibronectin receptor, and this binding could be reversed with EDTA. Calcium may be the divalent cation required for the binding since the 100 kd protein was found to bind 45Ca2+. The N-terminal amino acid sequence of the 100 kd protein was not similar to any sequence in a protein data base. Immunofluorescent staining of cells cultured on fibronectin showed the 100 kd protein coinciding with the fibronectin receptor beta subunit in sites of substrate contact. Therefore this protein, which we term fibulin, interacts with the fibronectin receptor in vitro and associates with the receptor in vivo. Fibulin is a potential mediator of interactions between adhesion receptors and the cytoskeleton.[1]

References

  1. Fibulin, a novel protein that interacts with the fibronectin receptor beta subunit cytoplasmic domain. Argraves, W.S., Dickerson, K., Burgess, W.H., Ruoslahti, E. Cell (1989) [Pubmed]
 
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