rs727504943

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001134363.3(RBM20):​c.536G>A​(p.Gly179Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000258 in 1,551,518 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G179V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

RBM20
NM_001134363.3 missense

Scores

10
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.56

Publications

0 publications found
Variant links:
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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29570442).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RBM20NM_001134363.3 linkc.536G>A p.Gly179Asp missense_variant Exon 2 of 14 ENST00000369519.4 NP_001127835.2 Q5T481
RBM20XM_017016103.3 linkc.371G>A p.Gly124Asp missense_variant Exon 2 of 14 XP_016871592.1
RBM20XM_017016104.3 linkc.152G>A p.Gly51Asp missense_variant Exon 2 of 14 XP_016871593.1
RBM20XM_047425116.1 linkc.152G>A p.Gly51Asp missense_variant Exon 2 of 14 XP_047281072.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RBM20ENST00000369519.4 linkc.536G>A p.Gly179Asp missense_variant Exon 2 of 14 1 NM_001134363.3 ENSP00000358532.3 Q5T481
RBM20ENST00000718239.1 linkc.536G>A p.Gly179Asp missense_variant Exon 2 of 14 ENSP00000520684.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152148
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.000478
GnomAD4 exome
AF:
0.00000214
AC:
3
AN:
1399370
Hom.:
0
Cov.:
32
AF XY:
0.00000145
AC XY:
1
AN XY:
690184
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31598
American (AMR)
AF:
0.00
AC:
0
AN:
35704
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25182
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35738
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49210
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
0.00000278
AC:
3
AN:
1078994
Other (OTH)
AF:
0.00
AC:
0
AN:
58010
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152148
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74316
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41430
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68014
Other (OTH)
AF:
0.000478
AC:
1
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Feb 10, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Gly179Asp variant in RBM20 has been identified by our laboratory in 1 adul t with HCM who carried a pathogenic variant in another gene that was sufficient to explain the disease. Data from large population studies are insufficient to a ssess the frequency of this variant. Computational prediction tools and conserva tion analysis do not provide strong support for or against an impact to the prot ein. In summary, the clinical significance of the p.Gly179Asp variant is uncerta in. -

Cardiomyopathy Uncertain:1
Mar 24, 2021
CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Left ventricular noncompaction cardiomyopathy Uncertain:1
May 07, 2019
Agnes Ginges Centre for Molecular Cardiology, Centenary Institute
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:research

This variant has been identified as part of our research program. Refer to the 'condition' field for the phenotype of the proband identified with this variant. For further information please feel free to contact us. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
-0.060
CADD
Uncertain
24
DANN
Uncertain
1.0
Eigen
Benign
0.070
Eigen_PC
Benign
0.13
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Uncertain
0.22
D
MetaRNN
Benign
0.30
T
MetaSVM
Uncertain
0.13
D
PhyloP100
2.6
PrimateAI
Uncertain
0.52
T
PROVEAN
Benign
-1.9
N
REVEL
Uncertain
0.37
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.020
D
Vest4
0.35
MutPred
0.14
Loss of methylation at R178 (P = 0.0311);
MVP
0.62
ClinPred
0.95
D
GERP RS
3.3
gMVP
0.39
Mutation Taster
=90/10
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs727504943; hg19: chr10-112540903; API