title: The phenylketonuria G272X haplotype 7 mutation in European populations.
abstract: We have compiled data on the frequencies of the phenylketonuria G272X mutation in European populations. This mutation occurs north of the Alps. It has a particularly high frequency in the Oslo Fjord region of Norway with the adjacent Bohuslän region of Sweden. An intermediate frequency was noted in a separate area, the eastern part of Germany with the adjacent western part of Czechoslovakia. The G272X mutation was associated with phenylalanine hydroxylase haplotype 7, except for one case with haplotype 3. Genealogical studies going back eight to nine generations revealed no common source for this mutation, but there was some geographical convergence to the Bohuslän region. These findings suggest a single origin for this mutation, with at least one founding population in south-eastern Norway/adjacent Sweden.
authors.affiliation: Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway.
authors.forename: J
authors.initials: J
authors.lastname: Apold
authors.forename: H G
authors.initials: HG
authors.lastname: Eiken
authors.forename: E
authors.initials: E
authors.lastname: Svensson
authors.forename: E
authors.initials: E
authors.lastname: Kunert
authors.forename: L
authors.initials: L
authors.lastname: Kozak
authors.forename: P
authors.initials: P
authors.lastname: Cechak
authors.forename: F
authors.initials: F
authors.lastname: Güttler
authors.forename: J
authors.initials: J
authors.lastname: Giltay
authors.forename: U
authors.initials: U
authors.lastname: Lichter-Konecki
authors.forename: D
authors.initials: D
authors.lastname: Melle
mesh_terms: D005060:Europe / Q000453:epidemiology; D005787:Gene Frequency; D006239:Haplotypes; D006801:Humans; D009154:Mutation; D009664:Norway / Q000453:epidemiology; D010661:Phenylketonurias / Q000453:epidemiology* / Q000235:genetics*; D013548:Sweden / Q000453:epidemiology