rs1554844950

Positions:

• chr10-110835884-T-TGGCCGAGGAGGGCCTCAAGGAGACCGAGGG

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PM4

The NM_001134363.3(RBM20):​c.3594_3623dup​(p.Glu1199_Ala1208dup) variant causes a inframe insertion change. The variant allele was found at a frequency of 0.00000657 in 152,206 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: RBM20 NM_001134363.3 inframe_insertion
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.03

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_001134363.3.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RBM20	NM_001134363.3	c.3594_3623dup	p.Glu1199_Ala1208dup	inframe_insertion	14/14	ENST00000369519.4	NP_001127835.2
RBM20	XM_017016103.3	c.3429_3458dup	p.Glu1144_Ala1153dup	inframe_insertion	14/14		XP_016871592.1
RBM20	XM_017016104.3	c.3210_3239dup	p.Glu1071_Ala1080dup	inframe_insertion	14/14		XP_016871593.1
RBM20	XM_047425116.1	c.3210_3239dup	p.Glu1071_Ala1080dup	inframe_insertion	14/14		XP_047281072.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RBM20	ENST00000369519.4	c.3594_3623dup	p.Glu1199_Ala1208dup	inframe_insertion	14/14	1	NM_001134363.3	ENSP00000358532	P1
RBM20	ENST00000465774.2	n.535_564dup		non_coding_transcript_exon_variant	2/2	4
RBM20	ENST00000480343.2	n.227_256dup		non_coding_transcript_exon_variant	3/3	4

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152206 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 30

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152206 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74356

Gnomad4 AFR AF: 0.0000241

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Dilated cardiomyopathy 1DD Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 18, 2021

This variant, c.3594_3623dup, results in the insertion of 10 amino acid(s) of the RBM20 protein (p.Glu1199_Ala1208dup), but otherwise preserves the integrity of the reading frame. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. ClinVar contains an entry for this variant (Variation ID: 470614). This variant has not been reported in the literature in individuals affected with RBM20-related conditions. This variant is not present in population databases (gnomAD no frequency). -

Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1554844950; hg19: chr10-112595642;