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

The biochemical identification of fibronectin in the sea urchin embryo.

We report the biochemical identification of fibronectin in the basal lamina of the sea urchin embryo. A. punctulata gastrula stage embryos were solubilized in Triton X-100 and the insoluble basal laminae extracted by incubation in buffer containing 8M urea, 2% 2-mercaptoethanol and 2% SDS. Extracted proteins were separated by SDS-PAGE, electrophoretically transferred to nitrocellulose filters and probed with monospecific antibodies directed against human plasma fibronectin (pFN). Incubation in 125I-labelled secondary antibody revealed a single band which co-migrates with human pFN at an apparent molecular weight of 220,000. This is the first direct biochemical demonstration of a fibronectin-like molecule in the sea urchin embryo which cross reacts with antibodies to vertebrate fibronectin.[1]

References

  1. The biochemical identification of fibronectin in the sea urchin embryo. DeSimone, D.W., Spiegel, E., Spiegel, M. Biochem. Biophys. Res. Commun. (1985) [Pubmed]
 
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