1. Hb Dahua [β59(E3)Lys→Met; HBB: c.179A>T] a Novel Variant on the β-Globin Gene.
- Author
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Qin, Yan-Ye, Huang, Xiao-Juan, Ma, Yue-Liao, Qin, Jiao-Xiu, Liang, Liang, and Li, You-Qiong
- Subjects
HIGH performance liquid chromatography ,ISOELECTRIC focusing ,CAPILLARY electrophoresis ,GENETIC variation ,MISSENSE mutation ,GENETIC code - Abstract
We report a novel hemoglobin (Hb) variant found in a Chinese individual from the Guangxi Zhuang Autonomous Region of the People's Republic of China. The proband was a 6-month-old boy who came from Dahua county, Hechi City. Capillary zone electrophoresis (CZE) showed an abnormal peak (51.2%) in zone 13. However, capillary isoelectric focusing electrophoresis (CIFE) presented an unknown peak in zone Bart's (51.4%). High performance liquid chromatography (HPLC) displayed an unknown peak (42.1%) at retention time 2.44 min., eluting before Hb A
0 . Direct DNA sequencing of the β-globin gene revealed heterozygosity for a missense mutation at codon 59 (AAG>ATG), causing a lysine to methionine substitution [β59(E3)Lys→Met; HBB: c.179A>T]. We decided to name the variant Hb Dahua for the place of origin of the proband. [ABSTRACT FROM AUTHOR]- Published
- 2021
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