Nonsense mutations in the human β-globin gene lead to unexpected levels of cytoplasmic mRNA accumulation

Abstract excerpt

Generally, nonsense codons 50 bp or more upstream of the 3'-most intron of the human beta-globin gene reduce mRNA abundance. In contrast, dominantly inherited beta-thalassemia is frequently associated with nonsense mutations in the last exon. In this work, murine erythroleukemia (MEL) cells were stably transfected with human beta-globin genes mutated within each of the 3 exons, namely at codons 15 (TGG-->TGA), 39...

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