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Paper Information

Journal:   ARCHIVES OF IRANIAN MEDICINE   DECEMBER 2013 , Volume 16 , Number 12; Page(s) 739 To 740.
 
Paper: 

PRELIMINARY IDENTIFICATION OF HEMOGLOBIN Q-IRAN IN AN IRANIAN FAMILY FROM CENTRAL PROVINCE OF IRAN BY GLOBIN CHAIN ANALYSIS ON HPLC (CASE REPORT)

 
 
Author(s):  KHATAMI SHOHREH, NAJMABADI HOSSEIN, ROUHI SOGHRA, MIRZAZADEH ROGHIEH, BAYAT PARASTOU, SADEGHI SEDIGHE*
 
* DEPARTMENT OF BIOCHEMISTRY, PASTEUR INSTITUTE OF IRAN, TEHRAN, IRAN
 
Abstract: 

Many abnormal a-chain hemoglobins (Hbs) are caused by single nucleotide mutations in a1- or a2-goblin genes. One of these Hbs is Hb Q-Iran which is resulted from a point mutation at codon 75 of the a1-globin gene (Asp®His). 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 a-globin chain peak with a different retention time from bs-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.

 
Keyword(s): α-GLOBIN VARIANT, DNA SEQUENCING, GLOBIN CHAIN ANALYSIS, HBQ-IRAN, IRAN
 
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