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A comprehensive scanning method for rapid detection of β-globin gene mutations and polymorphisms

✍ Scribed by Nada Ghanem; Emmanuelle Girodon; Michel Vidaud; Josiane Martin; Pascale Fanen; François Plassa; Michel Goossens

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
896 KB
Volume
1
Category
Article
ISSN
1059-7794

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✦ Synopsis

We describe a scanning procedure for the detection of P-globin gene mutations and the prenatal diagnosis of P-thalassemias. The method is based on the combined use of PCR and denaturing gradient gel electrophoresis (DGGE) of six amplified fragments encompassing the whole P-globin coding region and splice junctions, as well as the promoter and 3' untranslated regions. The whole P-globin gene can be rapidly scanned for the presence of deleterious mutations. The proposed diagnostic strategy provides a major improvement over current approaches to Peglobin gene analysis in both research and clinical laboratories, especially those which analyse DNA samples from individuals belonging to various ethnic or population groups. The use of this procedure has enabled us to detect six novel sequence changes in the P-globin gene, including two deleterious mutations and four polymorphisms.

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