Hb Tacoma [β30(B12) Arg→Ser], A Slightly Unstable Hemoglobin Variant Found in Japan

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Description

In August 1983, during the course of a hemoglobinopathy survey in Shimane Prefecture, we found a slightly fast-moving abnormal hemoglobin by isoelectric focusing (1). Structural analysis of this hemoglobin demonstrated it to be identical to Hb Tacoma, possessing an amino acid substitution of Arg→Ser at the position of β30. Hb Tacoma is known as a slightly unstable hemoglobin variant detected at first in America (2) and then in the Soviet Union (3), Finland (4) and again in America (5). The fourth case in America was a double heterozygote of Hb S and Hb Tacoma. Thus this is the fifth case in the world and the first case in Japan.

Journal

  • Hemoglobin

    Hemoglobin 9 635-639, 1985-01-01

    Informa UK Limited

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