rs755241667

Positions:

• chr10-110812628-A-G
• chr10-110812628-A-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2 BP4_Strong BP6_Very_Strong

The NM_001134363.3(RBM20):​c.2231A>G​(p.Asn744Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000214 in 1,399,364 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: RBM20 NM_001134363.3 missense
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts U:1 B:2
• Conservation: PhyloP100: -0.430

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]

ACMG classification

Verdict is Benign. Variant got -10 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.025788337).
• BP6: Variant 10-110812628-A-G is Benign according to our data. Variant chr10-110812628-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 470597.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RBM20	NM_001134363.3	c.2231A>G	p.Asn744Ser	missense_variant	9/14	ENST00000369519.4	NP_001127835.2
RBM20	XM_017016103.3	c.2066A>G	p.Asn689Ser	missense_variant	9/14		XP_016871592.1
RBM20	XM_017016104.3	c.1847A>G	p.Asn616Ser	missense_variant	9/14		XP_016871593.1
RBM20	XM_047425116.1	c.1847A>G	p.Asn616Ser	missense_variant	9/14		XP_047281072.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RBM20	ENST00000369519.4	c.2231A>G	p.Asn744Ser	missense_variant	9/14	1	NM_001134363.3	ENSP00000358532	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000640 AC: 1 AN: 156160 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 82800

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: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000166

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000214 AC: 3 AN: 1399364 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 690192

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: 0.00000278

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.0000404 AC: 1

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:1 Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, no assertion criteria provided

provider interpretation

Stanford Center for Inherited Cardiovascular Disease, Stanford University

Aug 03, 2017

This variant was seen in a patient with ARVC at our center. Testing was performed at Inviatae. Given the lack of case data, we consider this variant a variant of uncertain significance and we do not feel it is suitable for assessing risk in healthy relatives ("predictive genetic testing"). There are no reported cases in the literature (per PubMed and Google). In silico analyses suggest this missense change would be tolerated. However, per the lab report, "Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies." The variant is present in 2 of 90936 individuals listed in the Genome Aggregation Consortium Dataset (gnomAD; http://gnomad.broadinstitute.org/), which currently includes variant calls on >140,000 unrelated individuals of African, Asian, European, Latino, and Ashkenazi descent. Specifically the variant has been seen in 2 of 36378 European individuals (MAF = 0.002749%). The site is well covered. -

Dilated cardiomyopathy 1DD Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 11, 2023

- -

Cardiovascular phenotype Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 29, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.058
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.69
CADD	Benign	0.012
DANN	Benign	0.43
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.041	N
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.026	T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.20	T
PROVEAN	Benign	0.11	N
REVEL	Benign	0.067
Sift	Benign	0.64	T
Sift4G	Benign	0.75	T
Vest4		0.060
MutPred		0.16		Gain of phosphorylation at N744 (P = 0.0024);
MVP		0.12
ClinPred		0.028	T
GERP RS		-4.3
gMVP		0.096

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

Other links and lift over

dbSNP: rs755241667; hg19: chr10-112572386;