Makara Journal of Science
Vol. 30, No. 3

HBB Gene Mutations and Their Impact on Phenotype and Protein Function in β-Thalassemia Families from Dera Ismail Khan, Pakistan

Ayaz, Muhammad (Unknown)
Muzammal, Muhammad (Unknown)
Shafiq, Maria (Unknown)
Ahmad, Nisar (Unknown)
Iman, Dua (Unknown)
Faraz, Maria (Unknown)
Hoti, Yaser Uddin (Unknown)
Siraj, Sami (Unknown)
Khan, Muzammil Ahmad (Unknown)
Khan, Jabbar (Unknown)



Article Info

Publish Date
28 Sep 2026

Abstract

The current genetic study aimed to screen out the genetic basis of ß-thalassemia in five unrelated consanguineous Pakistani families. Blood samples were collected, and targeted Sanger Sequencing of the HBB gene was done. Serum Interleukin-6 (IL-6) and quantitative measurements of T Helper and T Suppressor Lymphocytes were also carried out. Additionally, in silico analysis, including protein modeling, Protein-Protein docking, and Multiple sequence alignment, was also performed. Genetic analysis identified a homozygous mutation c.92+5G > C (IVS-I+5 G > C) in families 1, 2, and 3, which resulted in β+/ β+ Thalassemia Intermedia phenotype. While in the case of family 4, we identified a c.92G > C + c.92+5G > C (IVS-I+5 G > C) mutation in a compound heterozygous state that led to β+ Thalassemia Intermedia phenotype. However, in the case of family 5, a rare frameshift homozygous mutation c.17_18delCT was identified, reported only in the Balochi ethnic group throughout the history of thalassemia in Pakistan. Heterogeneous quantities of IL-6, T helper lymphocytes, and T Suppressor Lymphocytes were found in all the patients. This study offers an effective incentive to establish mutation detection as well as prenatal diagnosis (PND) centers on a larger scale, in the different ethnicities residing in the district Dera Ismail Khan (D. I. Khan), KP, Pakistan

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Journal Info

Abbrev

publication:science

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Subject

Description

Makara Journal of Science publishes original research or theoretical papers, notes, and minireviews on new knowledge and research or research applications on current issues in basic sciences, namely: Material Sciences (including: physics, biology, and chemistry); Biochemistry, Genetics, and ...