Genotyping of the aldehyde dehydrogenase 2 (ALDH2) gene using the polymerase chain reaction: evidence for single point mutation in the ALDH2 gene of ALDH2-deficiency.

Abstract excerpt

About half of all Japanese lack the activity of aldehyde dehydrogenase 2 (ALDH2), and suffer a flush after alcohol intake due to the marked elevation of blood acetaldehyde concentration. The cause of ALDH2 deficiency is thought to be a single point mutation in codon 487 of the ALDH2 gene. However, this mutant ALDH2 gene has not yet been cloned and sequenced. We amplified and cloned the exon 12 of the ALDH2 gene...

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