An alpha-globin gene initiation codon mutation in a black family with HbH disease
Open Access
- 1 September 1987
- journal article
- Published by American Society of Hematology in Blood
- Vol. 70 (3) , 729-732
- https://doi.org/10.1182/blood.v70.3.729.729
Abstract
The molecular basis of hemoglobin H disease in a Black family of Canadian origin was investigated. Affected individuals had a combination of deletion and nondeletion alpha-thalassemia mutations on different chromosomes. Cloning and sequencing of the DNA of one member with the nondeletion form revealed a new thalassemia mutation, an A---- G substitution, in the initiation codon of the remaining alpha-globin gene of a rightward (-alpha 3.7) deletion chromosome. This mutation abolished an Ncol restriction site and therefore is detectable in genomic DNA by Southern blot analysis.Keywords
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