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Characterization of sea-urchin fibronectin.

ABSTRACT: Sea-urchin fibronectin from the ovary of the sea urchin Pseudocentrotus depressus bound to gelatin, fibrin and fibrinogen. After mild digestion of the protein labelled with 125I, a 195 000 Da domain was observed. Sea-urchin fibronectin was aggregated by spermine (1 mM) at neutral pH. When the concentration of spermine was decreased or increased, the aggregation was diminished. The addition of 1 M-NaCl or 4 M-urea inhibited the spermine-induced aggregation. Sea-urchin fibronectin mediated the spreading of baby-hamster kidney cells on the plastic surface.

SUBMITTER: Iwata M 

PROVIDER: S-EPMC1152382 | biostudies-other | 1983 Oct

REPOSITORIES: biostudies-other

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