Skip to content
Open access

Unravelling the role of IRX4 variants in non-syndromic and Down syndrome associated congenital heart disease

Sep 2026 · bioRxiv · 0 citations · 4 references
Biology

TL;DR

The aberrant expression of muteins as well as downstream target genes along with compromised activities of promoters substantiate the pathogenic potential of the identified IRX4 variants and underscore the critical role of IRX4 in regulating multiple stages of cardiogenesis.

Read PDF

Similar papers

Open access Aug 2026

Heterozygous Variants in LRP1 Cause a Neurodevelopmental Disorder with Congenital Heart Defects

The findings suggest that LRP1 haploinsufficiency is associated with a syndromic NDD, and Phenotypic differences in cardiac and neurologic involvement between participants with pLOF and missense variants suggest the possibility of alternate disease mechanisms.

Alyssa L. Rippert, G. Arnadottir, Laura Bedinger et al. · 0 citations
Aug 2026

Molecular Characterization of two NR2F2 Exons identifies a Rare Intronic Variant Enriched in Indonesian Congenital Heart Disease Patients

It is suggested that pathogenic coding variants within these exons are unlikely to be a frequent genetic cause of CHD in Indonesian patients, and this study highlights the need for population-specific genetic investigations and their contribution to human cardiac development.

Wahidullah Mansoor · 0 citations
Open access Aug 2026

A novel variant c.1185_1196dup (p.(Gly396_Ser399dup)) in the SLC26A4 gene associated with recessive hearing loss

A novel variant was revealed – tandem duplication of twelve nucleotides (c.1185_1196dup) in exon 10 of the SLC26A4 gene, an in-frame insertion resulting in the inclusion of four additional amino acid residues Gly-Phe-Phe-Ser (p.(Gly396_Ser399dup) in a highly conserved region of the pendrin protein.

M. V. Zytsar, V. Danilchenko, A. Bondar et al. · 0 citations
Open access Oct 2026

The p.Arg52Leu variant in GNB2 causes a gain-of-function due to an increase of IK, ACh in stimulated hiPSC-CMs

Initially discovered and published in 2017, the heterozygous mutation (p.Arg52Leu) in the GNB2 gene is associated with sinus node dysfunction (SND) and atrioventricular block (AVB). Electrophysiological characterization using heterologous expression systems has demonstrated that this R52L GNB2 variant results in a larg...

A. Verkerk, Anne Kayser, Jassin Hamidi et al. · 0 citations
#protein folding Open access Aug 2026

Computational Structural Modeling of the TTN p.(Arg3936Ter) Variant in a Panamanian Patient with Dilated Cardiomyopathy

Established genomic and population-level evidence support a Likely Pathogenic, loss-of-function classification for the TTN p.Arg3936Ter variant, which introduces a premature termination codon predicted to generate a truncated titin protein of 3,935 amino acids and is predicted to escape nonsense-mediated decay.

Lydier De Gracia, O. Espinosa, L. Sotillo et al. · 0 citations

We use cookies to run the site and, with your consent, for analytics and to show ads. See our Cookie Policy.