rs780169403
Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_004281.4(BAG3):c.418G>A(p.Gly140Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,613,564 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. G140G) has been classified as Likely benign.
Frequency
Consequence
NM_004281.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
BAG3 | NM_004281.4 | c.418G>A | p.Gly140Ser | missense_variant | 2/4 | ENST00000369085.8 | |
BAG3 | XM_005270287.2 | c.418G>A | p.Gly140Ser | missense_variant | 2/4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
BAG3 | ENST00000369085.8 | c.418G>A | p.Gly140Ser | missense_variant | 2/4 | 1 | NM_004281.4 | P1 | |
BAG3 | ENST00000450186.1 | c.244G>A | p.Gly82Ser | missense_variant | 3/5 | 5 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152200Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 250964Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135752
GnomAD4 exome AF: 0.0000178 AC: 26AN: 1461364Hom.: 0 Cov.: 32 AF XY: 0.0000124 AC XY: 9AN XY: 726990
GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152200Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74360
ClinVar
Submissions by phenotype
not provided Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Feb 01, 2018 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Aug 30, 2017 | The G140S variant has not been published as pathogenic or been reported as benign to our knowledge. The G140S variant is not observed at a significant frequency in large population cohorts (Lek et al., 2016; 1000 Genomes Consortium et al., 2015; Exome Variant Server). The G140S variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. Nevertheless, this substitution occurs at a position that is not conserved across species, where S140 is wild-type for multiple other species. In silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. - |
Myofibrillar myopathy 6;C3151293:Dilated cardiomyopathy 1HH Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Oct 13, 2023 | This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 140 of the BAG3 protein (p.Gly140Ser). This variant is present in population databases (rs780169403, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with BAG3-related conditions. ClinVar contains an entry for this variant (Variation ID: 451747). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt BAG3 protein function. 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
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Oct 30, 2022 | The p.G140S variant (also known as c.418G>A), located in coding exon 2 of the BAG3 gene, results from a G to A substitution at nucleotide position 418. The glycine at codon 140 is replaced by serine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated 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