NM_001134363.3:c.2761A>G

Variant names:

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_001134363.3(RBM20):c.2761A>G(p.Ile921Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000709 in 1,551,766 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000065 ( 0 hom. )

Consequence

RBM20
NM_001134363.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:3

Conservation

PhyloP100: 5.77

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 Benign. Variant got -11 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.12370053).

BP6

Variant 10-110821380-A-G is Benign according to our data. Variant chr10-110821380-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 43999.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=6, Likely_benign=3}.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000125 (19/152336) while in subpopulation AMR AF= 0.000523 (8/15300). AF 95% confidence interval is 0.00026. There are 0 homozygotes in gnomad4. There are 5 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 19 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBM20	NM_001134363.3 link	c.2761A>G	p.Ile921Val	missense_variant	Exon 11 of 14	ENST00000369519.4	NP_001127835.2	Q5T481
RBM20	XM_017016103.3 link	c.2596A>G	p.Ile866Val	missense_variant	Exon 11 of 14		XP_016871592.1
RBM20	XM_017016104.3 link	c.2377A>G	p.Ile793Val	missense_variant	Exon 11 of 14		XP_016871593.1
RBM20	XM_047425116.1 link	c.2377A>G	p.Ile793Val	missense_variant	Exon 11 of 14		XP_047281072.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RBM20	ENST00000369519.4 link	c.2761A>G	p.Ile921Val	missense_variant	Exon 11 of 14	1	NM_001134363.3	ENSP00000358532.3		Q5T481

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.0000702

AC:

AN:

156610

Hom.:

AF XY:

0.0000602

AC XY:

AN XY:

83002

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000405

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000439

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000149

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000650

AC:

AN:

1399430

Hom.:

Cov.:

AF XY:

0.0000594

AC XY:

AN XY:

690214

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000560

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000379

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000714

Gnomad4 OTH exome

AF:

0.000155

GnomAD4 genome

AF:

0.000125

AC:

AN:

152336

Hom.:

Cov.:

AF XY:

0.0000671

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.0000721

Gnomad4 AMR

AF:

0.000523

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.0000427

Hom.:

Bravo

AF:

0.000151

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.000118

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:6Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Cardiomyopathy

Uncertain:2

Jun 16, 2021

CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Laboratory of Genetics and Molecular Cardiology, University of São Paulo

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Uncertain:1Benign:1

Jan 16, 2024

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: RBM20 c.2761A>G (p.Ile921Val) results in a conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 7.4e-05 in 188006 control chromosomes, predominantly at a frequency of 0.00016 within the Non-Finnish European subpopulation in the gnomAD database (v4.0.0). The observed variant frequency within Non-Finnish European control individuals in the gnomAD database is approximately 3 fold of the estimated maximal expected allele frequency for a pathogenic variant in RBM20 causing Dilated Cardiomyopathy phenotype (4.7e-05), strongly suggesting that the variant is a benign polymorphism found primarily in populations of Non-Finnish European origin. To our knowledge, no occurrence of c.2761A>G in individuals affected with Dilated Cardiomyopathy and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 43999). Based on the evidence outlined above, the variant was classified as likely benign. -

Nov 26, 2012

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The Ile921Val variant in RBM20 has not been reported in the literature nor previ ously identified by our laboratory. This variant has also not been identified in large and broad European American and African American populations by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS), though this low fr equency is insufficient to assess the clinical significance of this variant. Com putational analyses (biochemical amino acid properties, conservation, AlignGVGD, PolyPhen2, and SIFT) do not provide strong support for or against an impact to the protein. In summary, additional studies are needed to fully assess the clini cal significance of this variant. -

Dilated cardiomyopathy 1DD

Uncertain:1Benign:1

Sep 06, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Dec 02, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Uncertain:1Benign:1

Nov 02, 2023

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant does not alter protein structure/function -

Jan 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Cardiovascular phenotype

Uncertain:1

Apr 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2761A>G (p.I921V) alteration is located in exon 11 (coding exon 11) of the RBM20 gene. This alteration results from a A to G substitution at nucleotide position 2761, causing the isoleucine (I) at amino acid position 921 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.091

BayesDel_noAF

Benign

-0.11

CADD

Benign

DANN

Pathogenic

1.0

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Pathogenic

0.97

M_CAP

Benign

0.084

MetaRNN

Benign

0.12

MetaSVM

Uncertain

0.62

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-0.71

REVEL

Uncertain

0.44

Sift

Uncertain

0.028

Sift4G

Benign

0.13

Vest4

0.20

MVP

0.74

ClinPred

0.20

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

gMVP

0.16

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