rs542297252

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BS1_SupportingBS2

The NM_001134363.3(RBM20):c.3517G>A(p.Glu1173Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000219 in 1,551,588 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000021 ( 1 hom. )

Consequence

RBM20
NM_001134363.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

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]

RBM20 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000263 (4/152258) while in subpopulation SAS AF= 0.00083 (4/4820). AF 95% confidence interval is 0.000283. There are 0 homozygotes in gnomad4. There are 4 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAdExome4 at 30 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBM20	NM_001134363.3 link	c.3517G>A	p.Glu1173Lys	missense_variant	Exon 13 of 14	ENST00000369519.4	NP_001127835.2	Q5T481
RBM20	XM_017016103.3 link	c.3352G>A	p.Glu1118Lys	missense_variant	Exon 13 of 14		XP_016871592.1
RBM20	XM_017016104.3 link	c.3133G>A	p.Glu1045Lys	missense_variant	Exon 13 of 14		XP_016871593.1
RBM20	XM_047425116.1 link	c.3133G>A	p.Glu1045Lys	missense_variant	Exon 13 of 14		XP_047281072.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RBM20	ENST00000369519.4 link	c.3517G>A	p.Glu1173Lys	missense_variant	Exon 13 of 14	1	NM_001134363.3	ENSP00000358532.3	Q5T481
RBM20	ENST00000471172.1 link	n.93G>A		non_coding_transcript_exon_variant	Exon 2 of 2	5
RBM20	ENST00000480343.2 link	n.150G>A		non_coding_transcript_exon_variant	Exon 2 of 3	4

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152140

Hom.:

Cov.:

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:

0.000192

Gnomad SAS

AF:

0.000829

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000260

AC:

AN:

153930

Hom.:

AF XY:

0.0000367

AC XY:

AN XY:

81672

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 SAS exome

AF:

0.000176

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000214

AC:

AN:

1399330

Hom.:

Cov.:

AF XY:

0.0000304

AC XY:

AN XY:

690176

show subpopulations

Gnomad4 AFR exome

AF:

0.0000949

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000316

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000345

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152258

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74450

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000830

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000102

Hom.:

Bravo

AF:

0.0000264

ExAC

AF:

0.000129

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Dilated cardiomyopathy 1DD

Uncertain:3

Mar 11, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 1173 of the RBM20 protein (p.Glu1173Lys). This variant is present in population databases (rs542297252, gnomAD 0.02%). 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: 470612). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on 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. -

Apr 30, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Apr 01, 2021

Clinical Genomics Laboratory, Stanford Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Glu1173Lys variant in the RBM20 gene has not been previously reported in association with disease. • This variant has been identified in 4/22,770 South Asian chromosomes by the Genome Aggregation Database (http://gnomad.broadinstitute.org/). • Computational tools predict that p.Glu1173Lys variant is deleterious; however, the accuracy of in silico algorithms is limited. • These data were assessed using the ACMG/AMP variant interpretation guidelines. In summary, the significance of the p.Glu1173Lys variant is uncertain. Additional information is needed to resolve the significance of this variant. [ACMG evidence codes used: PM2; PP3 -

Primary dilated cardiomyopathy

Uncertain:1

Genetics and Genomics Program, Sidra Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: research

- -

Cardiovascular phenotype

Uncertain:1

Mar 03, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.E1173K variant (also known as c.3517G>A), located in coding exon 13 of the RBM20 gene, results from a G to A substitution at nucleotide position 3517. The glutamic acid at codon 1173 is replaced by lysine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious 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

Pathogenic

0.78

BayesDel_addAF

Uncertain

0.079

BayesDel_noAF

Pathogenic

0.15

CADD

Pathogenic

DANN

Pathogenic

1.0

Eigen

Pathogenic

0.69

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Pathogenic

0.99

M_CAP

Uncertain

0.19

MetaRNN

Uncertain

0.62

MetaSVM

Uncertain

0.28

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-2.2

REVEL

Uncertain

0.61

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0090

Vest4

0.82

MutPred

0.40

Gain of ubiquitination at E1173 (P = 0.0198);

MVP

0.85

ClinPred

0.58

GERP RS

5.4

gMVP

0.62

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

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over