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


, : Characterization of cobalamin receptor sites in brush-border plasma membranes of the tapeworm Spirometra mansonoides. Journal of Biological Chemistry 258(7): 4261-4265

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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Related references

Friedman, P.; Weinstein, P.1; Mueller, J.1; Allen, R., 1983: Characterization of cobalamin receptor sites in brush-border plasma membranes of the tapeworm Spirometra mansonoides Vitamin B12. Journal of biological chemistry, 258(7): 4261-4265

Lumsden, R.D.; Oaks, J.A.; Mueller, J.F., 1974: Brush border development in the tegument of the tapeworm, Spirometra mansonoides. The outer layer of the coracidium of Spirometra mansonoides is a ciliated syncytium which envelops the oncosphere, the surface of which is covered by attenuated projections of peripherally situated cells, whose nuclei lie subjacent to the superfic...

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Tkachuck, R.D.; Weinstein, P.P.; Mueller, J.F., 1976: Isolation and identification of a cobamide coenzyme from the tapeworm Spirometra mansonoides. A light-sensitive vitamin B12 derivative has been extracted from the adult cestode, Spirometra mansonoides. This corrinoid was identified as the cobamide coenzyme, adenosylcobalamin, by its chromatographic, chemical, and spectral properties.

Tkachuck, RD.; Weinstein, PP.; Mueller, JF., 1976: Lsolation and identification of a cobamide coenzyme from the tapeworm Spirometra mansonoides. Journal Parasit, 626: 948-950

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