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Reckoning the SIX1 mutation’s effects in branchio-oto-renal syndrome — A bioinformatics approach
Published in Springer Science and Business Media LLC
2015
Volume: 10
   
Issue: 5
Pages: 448 - 457
Abstract

Branchio-oto-renal syndrome (BOR) is autosomal dominant disorder which generates hearing impairment and kidney failures in affected individuals. The disease genomic maps were drawn back in recent years, demonstrating, missense mutations responsible in disease were located in SIX1, EYA1 and EYA2 genes. We try to uncover molecular biology of the syndrome with bioinformatics perspective, taking SIX1 and EYA2 protein interaction at center point. The study initiated with 23 natural mutations of SIX1 gene. They were first analyzed with prediction servers like SIFT, PolyPhen2, I Mutant, SNPs&GO, PHD-SNP and Panther, to identify their impact on their structural stability and function. Subsequently it narrowed down to seven consistent with our quest. They were analyzed on IUPred disorder prediction server. Later SIX1 and its all mutant proteins were docked with EYA2 protein using GRAMM-X server. The binding affinity of docked structures was analyzed using DFIRE2 algorithm. The results justify the earlier wet laboratory studies and indicate the reason behind them. Finally we summarize that the proven inactivity of all other mutants is due to the structural disorder created by mutations, hence usual molecular interaction is hindered; strangely protein interaction takes place at DNA binding site of SIX1 mutants. © 2015, Higher Education Press and Springer-Verlag Berlin Heidelberg.

About the journal
JournalData powered by TypesetFrontiers in Biology
PublisherData powered by TypesetSpringer Science and Business Media LLC
ISSN1674-7984
Open Access0