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Pharmacogenetics. 2000 Jun;10(4):293-300.

Molecular analysis of the N-acetyltransferase 1 gene (NAT1*) using polymerase chain reaction-restriction fragment-single strand conformation polymorphism assay.

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Laboratoire de Biochimie et Biologie Moléculaire, Hôpital Calmette, Centre Hospitalier Régional et Universitaire de Lille, France.


One major interest to analyse the extent of N-acetyltransferase 1 (NAT1*) allelic variation in the human population stems to a great extent from the possible association of interindividual differences in the metabolism of aromatic amines with certain chemically induced diseases, including cancer. Considering the increasing number of mutations in the NAT1 gene that are detected, NAT1* genotyping using conventional polymerase chain reaction (PCR) restriction fragment length polymorphism (RFLP) or allele-specific amplification assays has become complicated. We developed a rapid and powerful strategy allowing the full characterization of NAT1* alleles. This method, based on single-strand conformation polymorphism analysis of a unique PCR product encompassing the entire intronless NAT1*-coding region along with additional flanking segments in the 5' and 3' untranslated regions, was then applied to DNA samples from 270 individuals. Nine NAT1* allelic variants, including two novel (NAT1*28 and NAT1*29), and 15 different genotypes were identified. This approach could be advantageously used in epidemiological studies to provide more definite data on suspected associations between NAT1* genotype and certain pathological processes.

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