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| Content Provider | Springer Nature Link |
|---|---|
| Author | Calì, Francesco Dianzani, Irma Desviat, Lourdes R. Perez, Belen Ugarte, Magdalena Ozguc, Meral Seyrantepe, Volkan Shiloh, Yossi Giannattasio, Sergio Carducci, Carla Bosco, Paolo Leo, Giacomo De Piazza, Alberto Roma, V. |
| Copyright Year | 1997 |
| Abstract | IVS10nt546 (IVS10nt-11g→a) is the most common molecular defect of the phenylalanine hydroxylase gene causing phenylketonuria in Mediterranean populations. Previous studies have proposed various and alternative hypotheses concerning the geographical origin and pattern of diffusion of this mutation in this area. In this study, this issue was re-examined on a large sample (149) of “Mediterranean” IVS10nt546 mutant alleles analysed with multiallelic intragenic polymorphisms. The analysis of intragenic microsatellite (STR) and minisatellite (VNTR) polymorphisms shows allelic heterogeneity of the IVS10nt546 mutation. Eight STR and three VNTR alleles were found in association with the splicing defect. Of the ten detected STR–VNTR combinations (“minihaplotypes”), we identified a predominant allelic association (VNTR7 – STR252) embedded in a RFLP-haplotype 6 background, which seems to correspond to the ancestral gene originating in the Turkey–Israel area. Analysis of both absolute and relative gene frequencies of the STR252 – IVS10nt546 – VNTR7 minihaplotypes, shows statistically significant (P < 0.02) variations and may suggest gene flow from Turkey and/or Israel to Italy and Spain. The associated migratory events need not be unique in time (and people) but seem to suggest they may be traced back to the expansion of the Neolithic culture and people, thus allowing dating of the origin of this mutation to at least 5000–10 000 years ago. Alternative hypotheses are discussed to explain, in light of the available historical and pre-historical evidence, the pattern of diffusion of the IVS10nt546 mutation in the Mediterranean basin. |
| Starting Page | 350 |
| Ending Page | 355 |
| Page Count | 6 |
| File Format | |
| ISSN | 03406717 |
| Journal | Human Genetics |
| Volume Number | 100 |
| Issue Number | 3-4 |
| e-ISSN | 14321203 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 1997-08-04 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Genetics (clinical) |
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