RFLP discordance in a pku family due to a deletion in the pah gene

Paolo Bosco, Nadia Ceratto, Francesco Cali, Alexei A. Goltsov, Randy C. Eisensmith, Giuseppe Novelli, Bruno Dalla Piccola, Valentino Romano

Research output: Contribution to journalArticlepeer-review

Abstract

We have previously reported preliminary data on a PKU family showing a discordant segregation of Pvu II (b) alleles at the PAH locus. A combination of several restriction enzymes and probe C2.6 (intron 2) as well as STR typing were used to dissect the molecular structure of the PAH gene around exon 3. In this family, the results of this analysis and a re-examination of the physical map of the 5′-end of the gene provided strong evidence for the occurrence of a deletion removing exon 3. The "Sicilian" (approximately 2.5 kb) and "Yemenite Jew" (6.7 kb) deletions, the latter one also deleting exon 3, are different In terms of both the 5′-end breakpoint and apparent length. This study, besides adding a new member to the long and increasing list of nearly 200 PAH gene mutations, also proposes to undertake a careful evaluation of RFLP discordances incidentally detected at the PAH locus.

Original languageEnglish
Pages (from-to)497-504
Number of pages8
JournalTurkish Journal of Pediatrics
Volume38
Issue number4
Publication statusPublished - 1996

Keywords

  • Classical PKU
  • PAH gene mutation
  • RFLP discordance

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health

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