Summary
Band 3 is the major membrane protein of erythrocytes, which binds membrane skeletal proteins, glycolytic enzymes, and hemoglobin and transports various kinds of anions. Band 3-Memphis is a variant of Band 3, the amino terminal fragment of which depicts a slow electrophoretic mobility on sodium dodecyl sulfate-polyacrylamide gel. The frequency of Band 3-Memphis varies among populations, with a higher frequency among the Japanese. We investigated the frequency of Band 3-Memphis in a western Japanese island which is relatively isolated from the main islands, finding that the frequency of Band 3-Memphis of the inhabitants of this island is significantly higher than the frequency of the Japanese based on the survey in Kyushu Island. This indicates that there may be differences of population in the frequency of Band 3-Memphis in Japan and that Band 3-Memphis may be a good marker to genetically differentiate each population.
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Izuhara, K., Ideguchi, H., Otsuka, T. et al. High incidence of a polymorphic variant of erythrocyte membrane protein, Band 3-Memphis, on a western Japanese island. Jap J Human Genet 40, 265–270 (1995). https://doi.org/10.1007/BF01876185
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DOI: https://doi.org/10.1007/BF01876185