chr10-110812319-G-C

Variant names:

• chr10-110812319-G-C
• rs143785916
• NM_001134363.3:c.1922G>C

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1 PM2

The NM_001134363.3(RBM20):​c.1922G>C​(p.Arg641Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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. R641W) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: RBM20 NM_001134363.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.70
• 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 4 ACMG points.

• PM1: In a hotspot region, there are 16 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 18 uncertain in NM_001134363.3
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBM20	NM_001134363.3	c.1922G>C	p.Arg641Pro	missense_variant	Exon 9 of 14	ENST00000369519.4	NP_001127835.2
RBM20	XM_017016103.3	c.1757G>C	p.Arg586Pro	missense_variant	Exon 9 of 14		XP_016871592.1
RBM20	XM_017016104.3	c.1538G>C	p.Arg513Pro	missense_variant	Exon 9 of 14		XP_016871593.1
RBM20	XM_047425116.1	c.1538G>C	p.Arg513Pro	missense_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.1922G>C	p.Arg641Pro	missense_variant	Exon 9 of 14	1	NM_001134363.3	ENSP00000358532.3
RBM20	ENST00000718239.1	c.1922G>C	p.Arg641Pro	missense_variant	Exon 9 of 14			ENSP00000520684.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.36
BayesDel_addAF	Pathogenic	0.18	D
BayesDel_noAF	Uncertain	0.020
CADD	Pathogenic	27
DANN	Uncertain	1.0
Eigen	Uncertain	0.64
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Uncertain	0.94	D
M_CAP	Uncertain	0.13	D
MetaRNN	Uncertain	0.52	D
MetaSVM	Uncertain	0.092	D
PhyloP100		4.7
PrimateAI	Uncertain	0.58	T
PROVEAN	Pathogenic	-4.7	D
REVEL	Uncertain	0.40
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0030	D
Vest4		0.54
MutPred		0.27		Loss of MoRF binding (P = 6e-04);
MVP		0.80
ClinPred		0.99	D
GERP RS		5.7
gMVP		0.69
Mutation Taster		=50/50

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: rs143785916; hg19: chr10-112572077;