rs7908490
Variant summary
Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1
The NM_001134363.3(RBM20):c.517C>A(p.Pro173Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00424 in 1,551,686 control chromosomes in the GnomAD database, including 236 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P173S) has been classified as Uncertain significance.
Frequency
Consequence
NM_001134363.3 missense
Scores
Clinical Significance
Conservation
Publications
- dilated cardiomyopathyInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- dilated cardiomyopathy 1DDInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
- familial isolated dilated cardiomyopathyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- hypertrophic cardiomyopathyInheritance: AD Classification: LIMITED Submitted by: ClinGen
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ACMG classification
Our verdict: Benign. The variant received -20 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RBM20 | NM_001134363.3 | c.517C>A | p.Pro173Thr | missense_variant | Exon 2 of 14 | ENST00000369519.4 | NP_001127835.2 | |
| RBM20 | XM_017016103.3 | c.352C>A | p.Pro118Thr | missense_variant | Exon 2 of 14 | XP_016871592.1 | ||
| RBM20 | XM_017016104.3 | c.133C>A | p.Pro45Thr | missense_variant | Exon 2 of 14 | XP_016871593.1 | ||
| RBM20 | XM_047425116.1 | c.133C>A | p.Pro45Thr | missense_variant | Exon 2 of 14 | XP_047281072.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0223 AC: 3399AN: 152118Hom.: 124 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00504 AC: 789AN: 156518 AF XY: 0.00379 show subpopulations
GnomAD4 exome AF: 0.00227 AC: 3179AN: 1399450Hom.: 112 Cov.: 32 AF XY: 0.00195 AC XY: 1345AN XY: 690236 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0224 AC: 3403AN: 152236Hom.: 124 Cov.: 32 AF XY: 0.0210 AC XY: 1566AN XY: 74428 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Benign:7
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
7.1% (98/1384) of Afr Amer chrom from ESP -
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Variant summary: RBM20 c.517C>A (p.Pro173Thr) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.005 in 156518 control chromosomes in the gnomAD database, including 24 homozygotes. The observed variant frequency is approximately 202 fold of the estimated maximal expected allele frequency for a pathogenic variant in RBM20 causing Cardiomyopathy phenotype (2.5e-05), strongly suggesting that the variant is benign. To our knowledge, no occurrence of c.517C>A in individuals affected with Cardiomyopathy and no experimental evidence demonstrating its impact on protein function have been reported. Four clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as benign. -
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Dilated cardiomyopathy 1DD Benign:4
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This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Cardiomyopathy Benign:1
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not provided Benign:1
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Cardiovascular phenotype Benign:1
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at