10-110831061-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001134363.3(RBM20):ā€‹c.3452G>Cā€‹(p.Gly1151Ala) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000323 in 1,550,156 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000029 ( 0 hom. )

Consequence

RBM20
NM_001134363.3 missense, splice_region

Scores

9
6
1
Splicing: ADA: 0.9998
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 9.60
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.868

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RBM20NM_001134363.3 linkuse as main transcriptc.3452G>C p.Gly1151Ala missense_variant, splice_region_variant 13/14 ENST00000369519.4 NP_001127835.2 Q5T481
RBM20XM_017016103.3 linkuse as main transcriptc.3287G>C p.Gly1096Ala missense_variant, splice_region_variant 13/14 XP_016871592.1
RBM20XM_017016104.3 linkuse as main transcriptc.3068G>C p.Gly1023Ala missense_variant, splice_region_variant 13/14 XP_016871593.1
RBM20XM_047425116.1 linkuse as main transcriptc.3068G>C p.Gly1023Ala missense_variant, splice_region_variant 13/14 XP_047281072.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RBM20ENST00000369519.4 linkuse as main transcriptc.3452G>C p.Gly1151Ala missense_variant, splice_region_variant 13/141 NM_001134363.3 ENSP00000358532.3 Q5T481
RBM20ENST00000471172.1 linkuse as main transcriptn.28G>C splice_region_variant, non_coding_transcript_exon_variant 2/25
RBM20ENST00000480343.2 linkuse as main transcriptn.85G>C splice_region_variant, non_coding_transcript_exon_variant 2/34

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152164
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000286
AC:
4
AN:
1397992
Hom.:
0
Cov.:
30
AF XY:
0.00000145
AC XY:
1
AN XY:
689270
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000371
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152164
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74336
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Dilated cardiomyopathy 1DD Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 26, 2023This sequence change replaces glycine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 1151 of the RBM20 protein (p.Gly1151Ala). 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. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 520538). This variant has not been reported in the literature in individuals affected with RBM20-related conditions. This variant is not present in population databases (gnomAD no frequency). -
Primary familial dilated cardiomyopathy Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingMolecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart InstituteOct 27, 2016- -
Cardiovascular phenotype Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 27, 2024The p.G1151A variant (also known as c.3452G>C) is located in coding exon 13 of the RBM20 gene. The glycine at codon 1151 is replaced by alanine, an amino acid with similar properties. This change occurs in the first base pair of coding exon 13. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.92
BayesDel_addAF
Pathogenic
0.28
D
BayesDel_noAF
Pathogenic
0.17
CADD
Pathogenic
33
DANN
Uncertain
1.0
Eigen
Pathogenic
0.80
Eigen_PC
Pathogenic
0.81
FATHMM_MKL
Pathogenic
0.99
D
M_CAP
Uncertain
0.18
D
MetaRNN
Pathogenic
0.87
D
MetaSVM
Uncertain
-0.028
T
PrimateAI
Pathogenic
0.88
D
PROVEAN
Uncertain
-3.7
D
REVEL
Pathogenic
0.67
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.017
D
Vest4
0.93
MutPred
0.60
Loss of sheet (P = 7e-04);
MVP
0.85
ClinPred
1.0
D
GERP RS
5.4
gMVP
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.97
SpliceAI score (max)
0.080
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1185476843; hg19: chr10-112590819; API