rs749002955
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_003476.5(CSRP3):c.532C>T(p.Pro178Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_003476.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 4 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000132 AC: 2AN: 152048Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251410Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135876
GnomAD4 exome AF: 0.00000684 AC: 10AN: 1461840Hom.: 0 Cov.: 30 AF XY: 0.00000688 AC XY: 5AN XY: 727228
GnomAD4 genome AF: 0.0000132 AC: 2AN: 152048Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74262
ClinVar
Submissions by phenotype
Dilated cardiomyopathy 1M;C2677491:Hypertrophic cardiomyopathy 12 Uncertain:1
This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 178 of the CSRP3 protein (p.Pro178Ser). This variant is present in population databases (rs749002955, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with CSRP3-related conditions. ClinVar contains an entry for this variant (Variation ID: 543039). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Cardiovascular phenotype Uncertain:1
The p.P178S variant (also known as c.532C>T), located in coding exon 5 of the CSRP3 gene, results from a C to T substitution at nucleotide position 532. The proline at codon 178 is replaced by serine, an amino acid with similar properties. This variant has been detected in a hypertrophic cardiomyopathy cohort; however, details were limited (Lopes LR. Heart . 2015 Feb;101(4):294-301. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at