rs377259044
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2
The NM_001134363.3(RBM20):c.2464C>A(p.Gln822Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000805 in 1,490,216 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. Q822Q) has been classified as Likely benign.
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 -7 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RBM20 | NM_001134363.3 | c.2464C>A | p.Gln822Lys | missense_variant | Exon 9 of 14 | ENST00000369519.4 | NP_001127835.2 | |
| RBM20 | XM_017016103.3 | c.2299C>A | p.Gln767Lys | missense_variant | Exon 9 of 14 | XP_016871592.1 | ||
| RBM20 | XM_017016104.3 | c.2080C>A | p.Gln694Lys | missense_variant | Exon 9 of 14 | XP_016871593.1 | ||
| RBM20 | XM_047425116.1 | c.2080C>A | p.Gln694Lys | missense_variant | Exon 9 of 14 | XP_047281072.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000132 AC: 2AN: 151970Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000941 AC: 1AN: 106292 AF XY: 0.0000180 show subpopulations
GnomAD4 exome AF: 0.00000747 AC: 10AN: 1338246Hom.: 0 Cov.: 32 AF XY: 0.00000611 AC XY: 4AN XY: 655068 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000132 AC: 2AN: 151970Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74214 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Dilated cardiomyopathy 1DD Uncertain:1Benign:1
- -
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Cardiovascular phenotype Uncertain:1
The p.Q822K variant (also known as c.2464C>A), located in coding exon 9 of the RBM20 gene, results from a C to A substitution at nucleotide position 2464. The glutamine at codon 822 is replaced by lysine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. 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