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Arch Iran Med. 2013;16(12):0-0.
PMID: 24329149
Scopus id: 84891654687
  Abstract View: 620
  PDF Download: 459

Case Report

Preliminary Identification of Hemoglobin Q-Iran in an Iranian Family from Central Province of Iran by Globin Chain Analysis on HPLC

Shohreh Khatami, Hossein Najmabadi, Soghra Rouhi, Roghieh Mirzazadeh, Parastoo Bayat, Sedigheh Sadeghi *

Abstract

Many abnormal α-chain hemoglobins (Hbs) are caused by single nucleotide mutations in α1- or α2-goblin genes. One of these Hbs is Hb Q-Iran which is resulted from a point mutation at codon 75 of the α1-globin gene (AspHis). The identification of Hb Q-Iran was observed in two members of a family from the Central Province of Iran. In this study, Globin chain analysis on high performance liquid chromatography (HPLC) and DNA sequencing were applied. An unusual Hb variant, like HbS on alkaline pH electrophoresis was identified from samples of a father and his son from Arak city in the Central Province of Iran. The variant was further characterized by globin chain analysis and DNA sequencing methods. Globin chain analysis revealed an unknown globin chain peak after α-globin chain peak with a different retention time from βs-globin chain, as the control in both samples. Genetic analysis led to the identification of an unknown Hb variant, Hb Q-Iran. Globin chain analysis showed the presence of an unknown globin chain, and likewise DNA sequencing revealed HbQ-Iran. In other words, Globin chain analysis procedure could preliminarily detect an unknown globin chain.

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First published online: 01 Dec 2013
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