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Region Hovedstaden - en del af Københavns Universitetshospital
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Mutational and phenotypical spectrum of phenylalanine hydroxylase deficiency in Denmark

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DOI

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Vis graf over relationer

We describe the genotypes of the complete cohort, from 1967-2014, of phenylketonuria (PKU) patients in Denmark, in total 376 patients. A total of 752 independent alleles were investigated. Mutations were identified on 744 PKU alleles (98.9%). In total 82 different mutations were present in the cohort. The most frequent mutation c.1315+1G>A (IVS12+1G>A) was found on 25.5% of the 744 alleles. Other very frequent mutations were c.1222C>T (p.R408W) (16.76 %) and c.1241A>G (p.Y414C) (11.03 %). Among the identified mutations, five mutations; c.532G>A (p.E178K), c.730C>T (p.P244S), c.925G>A (p.A309T), c.1228T>A (p.F410I), and c.1199+4A>G (IVS11+4A>G) have not been reported previously. The metabolic phenotypes of PKU are classified into four categories; "classical PKU", "moderate PKU", "mild PKU" and "mild hyperphenylalaninemia". In this study we assigned the phenotypic outcome of three of the five novel mutations and furthermore six not previously classified mutations to one of the four PKU categories.

OriginalsprogEngelsk
TidsskriftClinical Genetics
Vol/bind90
Udgave nummer3
Sider (fra-til)247-51
ISSN0009-9163
DOI
StatusUdgivet - sep. 2016

ID: 45848412