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

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

RBM20
NM_001134363.3 missense

Scores

4
12

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 4.67

Publications

0 publications found
Variant links:
Genes affected
RBM20 (HGNC:27424): (RNA binding motif protein 20) This gene encodes a protein that binds RNA and regulates splicing. Mutations in this gene have been associated with familial dilated cardiomyopathy. [provided by RefSeq, Apr 2014]
RBM20 Gene-Disease associations (from GenCC):
  • dilated cardiomyopathy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • dilated cardiomyopathy 1DD
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hypertrophic cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.14644095).
BP6
Variant 10-110812861-C-A is Benign according to our data. Variant chr10-110812861-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 470600.
BS2
High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RBM20NM_001134363.3 linkc.2464C>A p.Gln822Lys missense_variant Exon 9 of 14 ENST00000369519.4 NP_001127835.2 Q5T481
RBM20XM_017016103.3 linkc.2299C>A p.Gln767Lys missense_variant Exon 9 of 14 XP_016871592.1
RBM20XM_017016104.3 linkc.2080C>A p.Gln694Lys missense_variant Exon 9 of 14 XP_016871593.1
RBM20XM_047425116.1 linkc.2080C>A p.Gln694Lys missense_variant Exon 9 of 14 XP_047281072.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RBM20ENST00000369519.4 linkc.2464C>A p.Gln822Lys missense_variant Exon 9 of 14 1 NM_001134363.3 ENSP00000358532.3 Q5T481
RBM20ENST00000718239.1 linkc.2464C>A p.Gln822Lys missense_variant Exon 9 of 14 ENSP00000520684.1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151970
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000941
AC:
1
AN:
106292
AF XY:
0.0000180
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000225
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000747
AC:
10
AN:
1338246
Hom.:
0
Cov.:
32
AF XY:
0.00000611
AC XY:
4
AN XY:
655068
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
28846
American (AMR)
AF:
0.00
AC:
0
AN:
22770
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
21228
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35246
South Asian (SAS)
AF:
0.00
AC:
0
AN:
68712
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47108
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5378
European-Non Finnish (NFE)
AF:
0.00000854
AC:
9
AN:
1053738
Other (OTH)
AF:
0.0000181
AC:
1
AN:
55220
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151970
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74214
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41358
American (AMR)
AF:
0.00
AC:
0
AN:
15254
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10568
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000314
AC:
1
ExAC
AF:
0.0000398
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Dilated cardiomyopathy 1DD Uncertain:1Benign:1
Oct 10, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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
Nov 23, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
-0.013
T
BayesDel_noAF
Benign
-0.26
CADD
Uncertain
25
DANN
Uncertain
1.0
Eigen
Benign
0.084
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.78
D
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-0.61
T
PhyloP100
4.7
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.9
N
REVEL
Benign
0.18
Sift
Uncertain
0.0020
D
Sift4G
Benign
0.16
T
Vest4
0.26
MVP
0.55
ClinPred
0.81
D
GERP RS
5.8
gMVP
0.087
Mutation Taster
=88/12
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs377259044; hg19: chr10-112572619; API