Frequencies of HKαα and anti-HKαα Alleles in Chinese Carriers of Silent Deletional α-Thalassemia.

Abstract excerpt

The HKαα (HongKongαα) allele is an unusual rearrangement of the α-globin gene cluster containing both the -α(3.7) (rightward) and ααα(anti 4.2) crossover deletion/duplication. The anti-HKαα (anti-HongKongαα) allele is the reciprocal product containing both the -α(4.2) (leftward) and ααα(anti 3.7) unequal crossover deletion/duplication. In clinical practice of thalassemia screening, gap-polymerase chain reaction...

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