Worrawut ChinchangVip ViprakasitMahidol University2018-08-242018-08-242007-01-01Hemoglobin. Vol.31, No.1 (2007), 93-991532432X036302692-s2.0-33847062474https://repository.li.mahidol.ac.th/handle/20.500.14594/24278Thalassemias and hemoglobinopathies are very common among Southeast Asian populations, particularly in Thailand, where it is estimated that nearly 30% of the population carries at least one such disorder. Moreover, the heterogeneity of different mutant α- and β-globin alleles contributes to the complexity in diagnosis and proper management, as more than 60 thalassemia syndromes and hemoglobinopathies have been described. Herein we report a further case of Hb G-Coushatta [β22(B4)Glu→Ala (GAA→GCA)] (also known as G-Saskatoon, G-Hsin Chu and G-Taegu) in a Thai family in which the mother was found to have an unusual hemoglobin (Hb) anomaly in combination with Hb E [β26(B8)Glu→Lys, GAG→AAG]. We applied our recently described polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) technique to scan the β-globin genes and found an aberrant pattern in exon 1. The molecular analysis by direct genomic sequencing successfully identified the nucleotide mutation (codon 22, GAA→GCA), and a novel amplification refractory mutation system-polymerase chain reaction (ARMS-PCR) for this variant is described. Copyright © Informa Healthcare.Mahidol UniversityBiochemistry, Genetics and Molecular BiologyMedicineArticleSCOPUS10.1080/03630260601059225