Epidemiological studies of spectrin mutations related to hereditary elliptocytosis and spectrin polymorphisms in Benin
1996
We studied an African population in Benin and discovered an unexpectedly high frequency (1.6%) of hereditary elliptocytosis (HE) among the 1447 subjects studied. In approximately two-thirds of HE individuals we identified molecular defects, primarily those in erythrocyte α-spectrin (dupL154, L260P and L207P mutations), as well as a novel mutation of erythrocyte β-spectrin (β-W2061R mutation). We also identified the genetic basis of a previously identified protein polymorphism of the αIII domain of spectrin (R1331I mutation). The genetic background of HE in the African population was studied using a number of polymorphisms of the α-spectrin gene, including the αIII domain polymorphism. These studies suggest that the HE mutations appear to have originated from separate genetic backgrounds in this population.
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