rs1060503416

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001134363.3(RBM20):​c.3564G>C​(p.Arg1188Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000715 in 1,398,840 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1188G) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

RBM20
NM_001134363.3 missense

Scores

2
8
5

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.69

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: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.37886816).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RBM20NM_001134363.3 linkc.3564G>C p.Arg1188Ser missense_variant Exon 13 of 14 ENST00000369519.4 NP_001127835.2
RBM20XM_017016103.3 linkc.3399G>C p.Arg1133Ser missense_variant Exon 13 of 14 XP_016871592.1
RBM20XM_017016104.3 linkc.3180G>C p.Arg1060Ser missense_variant Exon 13 of 14 XP_016871593.1
RBM20XM_047425116.1 linkc.3180G>C p.Arg1060Ser missense_variant Exon 13 of 14 XP_047281072.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RBM20ENST00000369519.4 linkc.3564G>C p.Arg1188Ser missense_variant Exon 13 of 14 1 NM_001134363.3 ENSP00000358532.3
RBM20ENST00000718239.1 linkc.3564G>C p.Arg1188Ser missense_variant Exon 13 of 14 ENSP00000520684.1
RBM20ENST00000471172.1 linkn.140G>C non_coding_transcript_exon_variant Exon 2 of 2 5
RBM20ENST00000480343.2 linkn.197G>C non_coding_transcript_exon_variant Exon 2 of 3 4

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
7.15e-7
AC:
1
AN:
1398840
Hom.:
0
Cov.:
30
AF XY:
0.00000145
AC XY:
1
AN XY:
689838
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31590
American (AMR)
AF:
0.00
AC:
0
AN:
35686
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25178
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35720
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79214
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49228
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5694
European-Non Finnish (NFE)
AF:
9.27e-7
AC:
1
AN:
1078550
Other (OTH)
AF:
0.00
AC:
0
AN:
57980
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Dilated cardiomyopathy 1DD Uncertain:1
Mar 09, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with serine, which is neutral and polar, at codon 1188 of the RBM20 protein (p.Arg1188Ser). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with RBM20-related conditions. ClinVar contains an entry for this variant (Variation ID: 411660). 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 RBM20 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
Jun 14, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.R1188S variant (also known as c.3564G>C), located in coding exon 13 of the RBM20 gene, results from a G to C substitution at nucleotide position 3564. The arginine at codon 1188 is replaced by serine, an amino acid with dissimilar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. 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
Pathogenic
0.69
BayesDel_addAF
Uncertain
0.046
T
BayesDel_noAF
Benign
-0.17
CADD
Uncertain
23
DANN
Uncertain
1.0
Eigen
Benign
0.14
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Pathogenic
0.98
D
M_CAP
Uncertain
0.10
D
MetaRNN
Benign
0.38
T
MetaSVM
Benign
-0.57
T
PhyloP100
3.7
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
-1.8
N
REVEL
Uncertain
0.30
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.011
D
Vest4
0.49
ClinPred
0.93
D
GERP RS
4.7
gMVP
0.40
Mutation Taster
=76/24
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: rs1060503416; hg19: chr10-112590931; API