A New α1-Globin Variant, Hb Ormylia [ HBA1:c.63C > G; p.His21Gln]. Report of Eleven Cases in Northern Greece

Hemoglobin. 2024 Mar;48(2):133-137. doi: 10.1080/03630269.2024.2339517. Epub 2024 Apr 18.

Abstract

The first identification of a novel α1-Globin variant, Hb Ormylia in 11 Greeks originating from a small village, Ormylia, Chalkidiki, Greece is reported. The new genetic variant leads to the production of a hemoglobin variant that can be identified and quantified by High-Performance Liquid Chromatography. Capillary and classic electrophoresis were not informative. Direct DNA sequencing revealed a new mutation C > G mutation at codon 21 of α1 gene (His > Gln). The new variant has been named Hb Ormylia and this is the first description of this genetic variant of α1 gene in the literature.

Keywords: HPLC; Hb variants; P3 window; thalassemia.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Amino Acid Substitution
  • Female
  • Greece
  • Hemoglobins, Abnormal* / genetics
  • Humans
  • Male
  • Middle Aged
  • Mutation
  • alpha-Globins* / genetics
  • alpha-Thalassemia / diagnosis
  • alpha-Thalassemia / genetics

Substances

  • alpha-Globins
  • Hemoglobins, Abnormal
  • hemoglobin A1c protein, human