rs796734066

Variant names:

• chr10-110812297-C-A
• rs796734066
• NM_001134363.3:c.1900C>A

Your query was ambiguous. Multiple possible variants found:

• chr10-110812297-C-A
• chr10-110812297-C-G
• chr10-110812297-C-T

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 2P and 13B. PM2 BP4_Strong BP6_Very_Strong BP7

The NM_001134363.3(RBM20):​c.1900C>A​(p.Arg634Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000143 in 1,394,920 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 Likely benign (★★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: RBM20 NM_001134363.3 synonymous
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: 1.11
• Publications: 26 publications found

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 Gene-Disease associations (from GenCC):

• dilated cardiomyopathy

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• dilated cardiomyopathy 1DD

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
• familial isolated dilated cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• hypertrophic cardiomyopathy

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -11 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.67).
• BP6: Variant 10-110812297-C-A is Benign according to our data. Variant chr10-110812297-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 1586809.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=1.11 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBM20	NM_001134363.3	c.1900C>A	p.Arg634Arg	synonymous_variant	Exon 9 of 14	ENST00000369519.4	NP_001127835.2
RBM20	XM_017016103.3	c.1735C>A	p.Arg579Arg	synonymous_variant	Exon 9 of 14		XP_016871592.1
RBM20	XM_017016104.3	c.1516C>A	p.Arg506Arg	synonymous_variant	Exon 9 of 14		XP_016871593.1
RBM20	XM_047425116.1	c.1516C>A	p.Arg506Arg	synonymous_variant	Exon 9 of 14		XP_047281072.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RBM20	ENST00000369519.4	c.1900C>A	p.Arg634Arg	synonymous_variant	Exon 9 of 14	1	NM_001134363.3	ENSP00000358532.3
RBM20	ENST00000718239.1	c.1900C>A	p.Arg634Arg	synonymous_variant	Exon 9 of 14			ENSP00000520684.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000143 AC: 2 AN: 1394920 Hom.: 0 Cov.: 32 AF XY: 0.00000291 AC XY: 2 AN XY: 687254

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 31516

American (AMR) AF: 0.00 AC: 0 AN: 35552

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25080

East Asian (EAS) AF: 0.00 AC: 0 AN: 35618

South Asian (SAS) AF: 0.00 AC: 0 AN: 79076

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 48196

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5692

European-Non Finnish (NFE) AF: 0.00000186 AC: 2 AN: 1076332

Other (OTH) AF: 0.00 AC: 0 AN: 57858

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000203476), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:1

Nov 14, 2023

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

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Dilated cardiomyopathy 1DD Benign:1

Jul 15, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Cardiovascular phenotype Benign:1

Jan 05, 2021

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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
BayesDel_noAF	Benign	-0.67
CADD	Benign	2.9
DANN	Benign	0.58
PhyloP100		1.1

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

Other links and lift over

dbSNP: rs796734066; hg19: chr10-112572055;