10-110644469-A-T

Variant names:

• chr10-110644469-A-T
• rs1267175101
• NM_001134363.3:c.15A>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.15A>T​(p.Ala5Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000147 in 1,362,676 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 (★★). Synonymous variant affecting the same amino acid position (i.e. A5A) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000015 (0 hom.)
• Consequence: RBM20 NM_001134363.3 synonymous
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 0.605
• Publications: 0 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=-0.57).
• BP6: Variant 10-110644469-A-T is Benign according to our data. Variant chr10-110644469-A-T is described in ClinVar as [Likely_benign]. Clinvar id is 1647194.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=0.605 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBM20	NM_001134363.3	c.15A>T	p.Ala5Ala	synonymous_variant	Exon 1 of 14	ENST00000369519.4	NP_001127835.2
RBM20	XM_017016103.3	c.26+1029A>T		intron_variant	Intron 1 of 13		XP_016871592.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RBM20	ENST00000369519.4	c.15A>T	p.Ala5Ala	synonymous_variant	Exon 1 of 14	1	NM_001134363.3	ENSP00000358532.3
RBM20	ENST00000718239.1	c.15A>T	p.Ala5Ala	synonymous_variant	Exon 1 of 14			ENSP00000520684.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000147 AC: 2 AN: 1362676 Hom.: 0 Cov.: 31 AF XY: 0.00000149 AC XY: 1 AN XY: 671960

African (AFR) AF: 0.0000717 AC: 2 AN: 27900

American (AMR) AF: 0.00 AC: 0 AN: 32748

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24162

East Asian (EAS) AF: 0.00 AC: 0 AN: 32392

South Asian (SAS) AF: 0.00 AC: 0 AN: 76136

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4028

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1068142

Other (OTH) AF: 0.00 AC: 0 AN: 56544

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Dilated cardiomyopathy 1DD Benign:1

Apr 06, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Cardiovascular phenotype Benign:1

Sep 30, 2023

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	-0.57
CADD	Benign	15
DANN	Benign	0.93
PhyloP100		0.60
PromoterAI		-0.13	Neutral

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: rs1267175101; hg19: chr10-112404227;