ArticleJournal of assisted reproduction and genetics2024
A novel NPHP4 homozygous missense variant identified in infertile brothers with multiple morphological abnormalities of the sperm flagella.
Article in Journal of assisted reproduction and genetics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 10 citations in OpenAlex.
- The kinesin-4 protein KIF27 forms a cytoskeletal scaffold at the transition zone to promote motile cilia structural integrity.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Biallelic loss-of-function variants of DNAH7 cause male infertility associated with asthenozoospermia in humans.Human genetics · 2025Article
- Human asthenozoospermia: Update on genetic causes, patient management, and clinical strategies.Andrology · 2025Review
- Determination of Electrolytes and Trace Elements in Biological Samples from Patients with Altered Semen Parameters: a Correlational Analysis.Biological trace element research · 2025Article
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Authors and funding
15 authors at 4 institutions in 2 countries.
Funding
Abstract
purposeAsthenozoospermia is an important cause of male infertility, and the most serious type is characterized by multiple morphological abnormalities of the sperm flagella (MMAF). However, the precise etiology of MMAF remains unknown. In the current study, we recruited a consanguineous Pakistani family with two infertile brothers suffering from primary infertility due to MMAF without obvious signs of PCD.
methodsWe performed whole-exome sequencing on DNAs of the patients, their parents, and a fertile brother and identified the homozygous missense variant (c.1490C > G (p.P497R) in NPHP4 as the candidate mutation for male infertility in this family.
resultsSanger sequencing confirmed that this mutation recessively co-segregated with the MMAF in this family. In silico analysis revealed that the mutation site is conserved across different species, and the identified mutation also causes abnormalities in the structure and hydrophobic interactions of the NPHP4 protein. Different bioinformatics tools predict that NPHP4
conclusionsTaken together, these results show that the homozygous missense mutation in NPHP4 is associated with MMAF.
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