Hb Alessandria [β37(C3)Trp→Leu; HBB: c.113G>T]: a Novel Variant on the β-Globin Chain with Slightly Increased Affinity for Oxygen Detected by Capillary Electrophoresis.
Lara Calcagno, Maria M Ciriello, Monica Maccarini, Massimo Mogni, Massimo Maffei, Giuseppina Barberio, Sauro Maoggi, Domenico Coviello, Giovanni Ivaldi
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引用次数: 0
Abstract
We report a novel mutation on the β-globin gene in a 68-year-old woman of Sicilian origin living in Alessandria, Italy. This mutation produces a hemoglobin (Hb) variant of Hb A that was detected by the capillary electrophoresis (CE) method during measurement of Hb A1c. The variant Hb did not separate from Hb A using different high performance liquid chromatography (HPLC) instruments. Direct DNA sequencing revealed a G>T transversion at codon 37 and subsequent substitution of a tryptophan residue for a leucine residue. The new Hb variant was named Hb Alessandria [β37(C3)Trp→Leu; HBB: c.113G>T]. The p50 value was slightly decreased while the stability test at 37 °C in isopropyl alcohol and the main erythrocyte parameters were normal. Overall, the patient appeared clinically normal.
期刊介绍：
Hemoglobin is a journal in the English language for the communication of research and information concerning hemoglobin in humans and other species. Hemoglobin publishes articles, reviews, points of view
The journal covers topics such as:
structure, function, genetics and evolution of hemoglobins
biochemical and biophysical properties of hemoglobin molecules
characterization of hemoglobin disorders (variants and thalassemias),
consequences and treatment of hemoglobin disorders
epidemiology and prevention of hemoglobin disorders (neo-natal and adult screening)
modulating factors
methodology used for diagnosis of hemoglobin disorders
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