chr10-110644489-A-G

Variant names:

• chr10-110644489-A-G
• rs887276458
• NM_001134363.3:c.35A>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001134363.3(RBM20):​c.35A>G​(p.Asp12Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000073 in 1,370,278 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D12E) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.3e-7 (0 hom.)
• Consequence: RBM20 NM_001134363.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.265
• 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: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1610828).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001134363.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RBM20	NM_001134363.3	MANE Select	c.35A>G	p.Asp12Gly	missense	Exon 1 of 14	NP_001127835.2	Q5T481

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RBM20	ENST00000369519.4	TSL:1 MANE Select	c.35A>G	p.Asp12Gly	missense	Exon 1 of 14	ENSP00000358532.3	Q5T481
	RBM20	ENST00000961386.1		c.35A>G	p.Asp12Gly	missense	Exon 1 of 14	ENSP00000631445.1
	RBM20	ENST00000718239.1		c.35A>G	p.Asp12Gly	missense	Exon 1 of 14	ENSP00000520684.1	Q5T481

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.30e-7 AC: 1 AN: 1370278 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 675900

⚠️ 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: 28458

American (AMR) AF: 0.00 AC: 0 AN: 33662

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24398

East Asian (EAS) AF: 0.00 AC: 0 AN: 33136

South Asian (SAS) AF: 0.00 AC: 0 AN: 76854

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 41816

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4050

European-Non Finnish (NFE) AF: 9.34e-7 AC: 1 AN: 1071068

Other (OTH) AF: 0.00 AC: 0 AN: 56836

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.27
BayesDel_addAF	Uncertain	0.059	T
BayesDel_noAF	Benign	-0.15
CADD	Benign	21
DANN	Uncertain	0.99
Eigen	Benign	-0.44
Eigen_PC	Benign	-0.34
FATHMM_MKL	Benign	0.20	N
M_CAP	Pathogenic	0.95	D
MetaRNN	Benign	0.16	T
MetaSVM	Benign	-0.36	T
PhyloP100		0.27
PrimateAI	Pathogenic	0.86	D
PROVEAN	Benign	-0.53	N
REVEL	Benign	0.27
Sift	Uncertain	0.0010	D
Sift4G	Benign	0.19	T
Vest4		0.10
MutPred		0.21		Loss of stability (P = 0.0148)
MVP		0.43
ClinPred		0.71	D
GERP RS		3.1
PromoterAI		0.11	Neutral
gMVP		0.22
Mutation Taster		=93/7	polymorphism

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: rs887276458; hg19: chr10-112404247;