A novel compound heterozygosity in Southern China: IVS-II-5 (G > C) and IVS-II-672 (A > C)

Hemoglobin. 2016 Nov;40(6):428-430. doi: 10.1080/03630269.2016.1252387. Epub 2016 Nov 10.

Abstract

β-Thalassemia (β-thal) is a common hereditary anemia due to decreased or absent synthesis of the β-globin chains. Here, we report a patient found to be a novel compound heterozygote for the rare IVS-II-5 (G > C) (NG_000007.3: g.71044G > C) and IVS-II-672 (A > C) (NG_000007.3: g.71711A > C) mutations, which may be silent mutations that are associated with consistent residual output of β chains, normal red blood cell (RBC) indices and normal or borderline Hb A2 levels.

Keywords: DNA; compound heterozygosity; point mutation; sequence analysis; β-Thalassemia.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • China
  • Erythrocyte Indices
  • Hemoglobin A2 / genetics
  • Heterozygote*
  • Humans
  • Male
  • Point Mutation*
  • Sequence Analysis, DNA
  • Silent Mutation
  • beta-Globins / genetics
  • beta-Thalassemia / genetics*

Substances

  • beta-Globins
  • Hemoglobin A2