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Characterization of cobalamin receptor sites in brush-border plasma membranes of the tapeworm Spirometra mansonoides






Journal of Biological Chemistry 258(7): 4261-4265

Characterization of cobalamin receptor sites in brush-border plasma membranes of the tapeworm Spirometra mansonoides

The interaction of receptor sites in microtriche membranes isolated from the sparganum of S. mansonoides with yanocobalamin (CN-bl) was characterized. The association of CN-bl to isolated microtriche membranes at 22 deg C reached equilibrium in approximately 90 min. The initial rate of association followed 2nd order kinetics with an association rate constant (ka) of 1.1 X 106/M/sec.

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Accession: 001053378

PMID: 6833256



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