Abstract:
:We report the spectrum of mutations and associated modified haplotypes in patients with phenylketonuria living in Germany. A total of 546 independent alleles was investigated, including 411 of German and 65 of Turkish descent. Mutations were identified for 535 PKU alleles (98%) and there were 91 different mutations. The most common mutation was R408W on 22% of alleles. Two mutations, IVS12+1G-->A and IVS10-11G-->A accounted for just under 10% of alleles, whereas the remaining mutations were found at relative frequencies of 6% or less; 43 mutations were observed once only. IVS10-11G-->A was the most common mutation (38% of alleles) in the subgroup of patients of Turkish descent. Modified haplotypes were determined from the analysis of four silent mutations, three diallelic restriction fragment length polymorphisms, a variable number of tandem repeats minisatellite and a short tandem repeat microsatellite in the phenylalanine hydroxylase gene, showing that a considerable proportion of mutations must have recurred in independent founders; other mutations may have changed chromosomal haplotype backgrounds by gene conversion. The spectrum of PKU mutations in Germany reflects the history of a heterogenous Central European population living at the crossroads of migration throughout the centuries.
journal_name
Hum Genetjournal_title
Human geneticsauthors
Zschocke J,Hoffmann GFdoi
10.1007/s004390050973keywords:
subject
Has Abstractpub_date
1999-05-01 00:00:00pages
390-8issue
5eissn
0340-6717issn
1432-1203journal_volume
104pub_type
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