1
|
Nawaz H, Khan SA, Bibi F, Waqas A, Bari A, Khan N, Muhammad N, Khan A, Paracha SA, Alam Q, Kamal MA, Rafeeq MM, Muhammad N, Haq FU, Khan S, Mahmood A, Khan S, Umair M. Biallelic Variants in Seven Different Genes Associated with Clinically Suspected Bardet-Biedl Syndrome. Genes (Basel) 2023; 14:genes14051113. [PMID: 37239474 DOI: 10.3390/genes14051113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023] Open
Abstract
Bardet-Biedl syndrome (BBS) is a rare clinically and genetically heterogeneous autosomal recessive multi-systemic disorder with 22 known genes. The primary clinical and diagnostic features include six different hallmarks, such as rod-cone dystrophy, learning difficulties, renal abnormalities, male hypogonadism, post-axial polydactyly, and obesity. Here, we report nine consanguineous families and a non-consanguineous family with several affected individuals presenting typical clinical features of BBS. In the present study, 10 BBS Pakistani families were subjected to whole exome sequencing (WES), which revealed novel/recurrent gene variants, including a homozygous nonsense mutation (c.94C>T; p.Gln32Ter) in the IFT27 (NM_006860.5) gene in family A, a homozygous nonsense mutation (c.160A>T; p.Lys54Ter) in the BBIP1 (NM_001195306.1) gene in family B, a homozygous nonsense variant (c.720C>A; p.Cys240Ter) in the WDPCP (NM_015910.7) in family C, a homozygous nonsense variant (c.505A>T; p.Lys169Ter) in the LZTFL1 (NM_020347.4) in family D, pathogenic homozygous 1 bp deletion (c.775delA; p.Thr259Leufs*21) in the MKKS/BBS5 (NM_170784.3) gene in family E, a pathogenic homozygous missense variant (c.1339G>A; p.Ala447Thr) in BBS1 (NM_024649.4) in families F and G, a pathogenic homozygous donor splice site variant (c.951+1G>A; p?) in BBS1 (NM_024649.4) in family H, a pathogenic bi-allelic nonsense variant in MKKS (NM_170784.3) (c.119C>G; p.Ser40*) in family I, and homozygous pathogenic frameshift variants (c.196delA; p.Arg66Glufs*12) in BBS5 (NM_152384.3) in family J. Our findings extend the mutation and phenotypic spectrum of four different types of ciliopathies causing BBS and also support the importance of these genes in the development of multi-systemic human genetic disorders.
Collapse
Affiliation(s)
- Hamed Nawaz
- Department of Biotechnology and Genetic Engineering, Kohat University of Science & Technology (KUST), Kohat 26000, Pakistan
| | - Sher Alam Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science & Technology (KUST), Kohat 26000, Pakistan
| | - Farhana Bibi
- Department of Biotechnology and Genetic Engineering, Kohat University of Science & Technology (KUST), Kohat 26000, Pakistan
| | - Ahmed Waqas
- Department Zoology, Division of Science and Technology, University of Education, Lahore 54782, Pakistan
| | - Abdul Bari
- Department of Biotechnology and Genetic Engineering, Kohat University of Science & Technology (KUST), Kohat 26000, Pakistan
| | - Niamatullah Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science & Technology (KUST), Kohat 26000, Pakistan
| | - Nazif Muhammad
- Department of Biotechnology and Genetic Engineering, Kohat University of Science & Technology (KUST), Kohat 26000, Pakistan
| | - Amjad Khan
- Faculty of Science, Department of Biological Sciences (Zoology), University of Lakki Marwat, Lakki Marwat 28420, Pakistan
| | - Sohail Aziz Paracha
- Department of Anatomy, KMU Institute of Medical Sciences (KIMS), Kohat 26000, Pakistan
| | - Qamre Alam
- Molecular Genomics and Precision Medicine, ExpressMed Laboratories, Block Zinj, Manama 359, Bahrain
| | - Mohammad Azhar Kamal
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-kharj 11942, Saudi Arabia
| | - Misbahuddin M Rafeeq
- Department of Pharmacology, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Noor Muhammad
- Department of Biotechnology and Genetic Engineering, Kohat University of Science & Technology (KUST), Kohat 26000, Pakistan
| | - Fayaz Ul Haq
- Department of Radiological Sciences, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences, Riyadh 12271, Saudi Arabia
| | - Shazia Khan
- Hafeez Institute of Medical Sciences, Islamabad 44000, Pakistan
- Department of Biological Sciences, International Islamic University Islamabad, H-10, Islamabad 44000, Pakistan
| | - Arif Mahmood
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha 410078, China
| | - Saadullah Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science & Technology (KUST), Kohat 26000, Pakistan
| | - Muhammad Umair
- Medical Genomics Research Department, King Abdullah International Medical Research Center (KAIMRC), King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs (MNGH), Riyadh 12271, Saudi Arabia
- Department of Life Sciences, School of Science, University of Management and Technology (UMT), Lahore 14611, Pakistan
| |
Collapse
|