ArticleJournal of clinical laboratory analysis2024
Exploring the Molecular Interaction Between NR2E3 and NR1D1 in Retinitis Pigmentosa: A Docking and Molecular Dynamics Study.
Article in Journal of clinical laboratory analysis, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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9 authors.
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Abstract
BACKGROUND AND
aimsRetinitis pigmentosa (RP) is a hereditary retinal disorder that gradually leads to vision loss due to photoreceptor cell degeneration. This study aims to investigate the clinical features and genetic underpinnings of RP within a large Iranian family. Our focus centered on mutations in the NR2E3 gene, which plays a critical role in the development and maintenance of the retina.
methodsTwenty-five family members showed symptoms of RP, and fourteen of them underwent clinical examinations conducted by geneticists and ophthalmologists. The DNA samples of five individuals diagnosed with RP from the family were subjected to whole-exome sequencing (WES) as part of the study. The candidate variant identified through WES was subsequently confirmed using bidirectional sequencing in additional family members. Additionally, in silico analysis, including molecular modeling, protein-protein docking, and molecular dynamics simulation (MD), was employed to assess potential pathogenic effects associated with the candidate variants.
resultsOphthalmic examination revealed night blindness, which is a common symptom among affected individuals. Genetic analysis identified a homozygous missense variant (c.934G>A/p.R311Q) in NR2E3 exon 6, which co-segregates with other affected family members. Furthermore, molecular docking analysis indicated potential disruption in the binding affinity between NR2E3 and NR1D1 proteins. In-depth, molecular dynamics analysis, considering parameters such as RMSD, RMSF, and hydrogen bonding, revealed notable differences between normal and mutant protein complexes.
conclusionExploring the molecular interaction between NR2E3 and NR1D1 provides new insights into the pathogenic mechanism of the p.R311Q mutation in RP.
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