Allelic frequencies of plasma alpha-1-antitrypsin in Chinese.


Alpha-1-antitrypsin (Pi) types and subtypes in a Chinese population of 1049 unrelated individuals in Beijing were determined by separator isoelectric focusing. The low activity Pi variant S and the deficient Pi variant Z, common in most Caucasian populations, are absent in the Chinese population. The frequent Pi variant found in the Chinese population is a… (More)


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