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Zhou, Qiao‐Miao; Jiang, Fan; Xu, Jing; Lin, Dan; Huang, Ren‐Liang; Zhou, Jian‐Ying; Qu, Yan‐Xia; Li, Dong‐Zhi
Annals of human genetics, March 2023, 2023-03-00, 20230301, Letnik: 87, Številka: 1-2Journal Article
Introduction The α‐globin fusion gene between the HBA2 and HBAP1 genes becomes clinically important in thalassemia screening because this fusion gene can cause severe hemoglobin (Hb) H disease when combining with α0‐thalassemia (α0‐thal). Due to its uncommon rearrangement in the α gene cluster without dosage changes, this fusion gene is undetectable by common molecular testing approaches used for α‐thal diagnosis. Methods In this study, we used the single‐molecule real‐time (SMRT) sequencing technique to detect this fusion gene in 23 carriers identified by next‐generation sequencing (NGS) among 16,504 screened individuals. Five primers for α and β thalassemia were utilized. Results According to the NGS results, the 23 carriers include 14 pure heterozygotes, eight compound heterozygotes with common α‐thal alleles, and one homozygote. By using SMRT, the fusion mutant was successfully detected in all 23 carriers. Furthermore, SMRT corrected the diagnosis in two “pure” heterozygotes: one was compound heterozygote with anti‐3.7 triplication, and the other was homozygote. Conclusion Our results indicate that SMRT is a superior method compared to NGS in detecting the α fusion gene, attributing to its efficient, accurate, and one‐step properties.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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