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Open AccessReview

Eighteen Years of Molecular Genotyping the Hemophilia Inversion Hotspot: From Southern Blot to Inverse Shifting-PCR

Departamento de Genética, Instituto de Investigaciones Hematológicas, Academia Nacional de Medicina, Pacheco de Melo 3081, Ciudad de Buenos Aires (CP 1425), Argentina
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Int. J. Mol. Sci. 2011, 12(10), 7271-7285; https://doi.org/10.3390/ijms12107271
Received: 5 September 2011 / Revised: 8 October 2011 / Accepted: 19 October 2011 / Published: 24 October 2011
(This article belongs to the Special Issue Advances in Molecular Diagnostics)
The factor VIII gene (F8) intron 22 inversion (Inv22) is a paradigmatic duplicon-mediated rearrangement, found in about one half of patients with severe hemophilia A worldwide. The identification of this prevalent cause of hemophilia was delayed for nine years after the F8 characterization in 1984. The aim of this review is to present the wide diversity of practical approaches that have been developed for genotyping the Inv22 (and related int22h rearrangements) since discovery in 1993. The sequence—Southern blot, long distance-PCR and inverse shifting-PCR—for Inv22 genotyping is an interesting example of scientific ingenuity and evolution in order to resolve challenging molecular diagnostic problems. View Full-Text
Keywords: F8; HEMA; intron 22 inversions; IS-PCR; LD-PCR F8; HEMA; intron 22 inversions; IS-PCR; LD-PCR
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Rossetti, L.C.; Radic, C.P.; Abelleyro, M.M.; Larripa, I.B.; De Brasi, C.D. Eighteen Years of Molecular Genotyping the Hemophilia Inversion Hotspot: From Southern Blot to Inverse Shifting-PCR. Int. J. Mol. Sci. 2011, 12, 7271-7285.

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