Variant 10-110780805-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001134363.3(RBM20):c.196G>A(p.Ala66Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000244 in 1,514,172 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

RBM20
NM_001134363.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 5.94

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 -4 ACMG points.

BS2

High AC in GnomAdExome4 at 36 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RBM20	NM_001134363.3 linkuse as main transcript	c.196G>A	p.Ala66Thr	missense_variant	2/14	ENST00000369519.4	NP_001127835.2	Q5T481
RBM20	XM_017016103.3 linkuse as main transcript	c.31G>A	p.Ala11Thr	missense_variant	2/14		XP_016871592.1
RBM20	XM_017016104.3 linkuse as main transcript	c.-189G>A		5_prime_UTR_variant	2/14		XP_016871593.1
RBM20	XM_047425116.1 linkuse as main transcript	c.-189G>A		5_prime_UTR_variant	2/14		XP_047281072.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RBM20	ENST00000369519.4 linkuse as main transcript	c.196G>A	p.Ala66Thr	missense_variant	2/14	1	NM_001134363.3	ENSP00000358532.3		Q5T481

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151964

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000153

AC:

AN:

130520

Hom.:

AF XY:

0.00

AC XY:

AN XY:

66736

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:

0.0000639

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000203

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000264

AC:

AN:

1362208

Hom.:

Cov.:

AF XY:

0.0000210

AC XY:

AN XY:

666022

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000283

Gnomad4 SAS exome

AF:

0.0000277

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000302

Gnomad4 OTH exome

AF:

0.0000177

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151964

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74228

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:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.00000756

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

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 21, 2023

The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. 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. 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. ClinVar contains an entry for this variant (Variation ID: 411657). This missense change has been observed in individual(s) with dilated cardiomyopathy (PMID: 28416588). This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 66 of the RBM20 protein (p.Ala66Thr). -

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 09, 2022

The p.A66T variant (also known as c.196G>A), located in coding exon 2 of the RBM20 gene, results from a G to A substitution at nucleotide position 196. The alanine at codon 66 is replaced by threonine, an amino acid with similar properties. This alteration has been reported in a dilated cardiomyopathy (DCM) cohort; however, clinical details were limited (Dal Ferro M et al. Heart, 2017 11;103:1704-1710). This amino acid position is highly 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

Benign

0.11

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Uncertain

0.010

CADD

Uncertain

DANN

Pathogenic

1.0

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.98

M_CAP

Uncertain

0.23

MetaRNN

Uncertain

0.49

MetaSVM

Pathogenic

0.92

PrimateAI

Pathogenic

0.82

PROVEAN

Benign

-1.5

REVEL

Uncertain

0.48

Sift

Pathogenic

0.0

Sift4G

Benign

0.14

Vest4

0.51

MVP

0.74

ClinPred

0.95

GERP RS

6.0

gMVP

0.42

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