chr10-110644590-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001134363.3(RBM20):​c.136C>T​(p.Pro46Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000728 in 1,373,436 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. 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. P46Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 7.3e-7 ( 0 hom. )

Consequence

RBM20
NM_001134363.3 missense

Scores

6
10

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.85

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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10969472).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RBM20NM_001134363.3 linkc.136C>T p.Pro46Ser missense_variant Exon 1 of 14 ENST00000369519.4 NP_001127835.2 Q5T481
RBM20XM_017016103.3 linkc.26+1150C>T intron_variant Intron 1 of 13 XP_016871592.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RBM20ENST00000369519.4 linkc.136C>T p.Pro46Ser missense_variant Exon 1 of 14 1 NM_001134363.3 ENSP00000358532.3 Q5T481
RBM20ENST00000718239.1 linkc.136C>T p.Pro46Ser missense_variant Exon 1 of 14 ENSP00000520684.1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
7.28e-7
AC:
1
AN:
1373436
Hom.:
0
Cov.:
33
AF XY:
0.00000148
AC XY:
1
AN XY:
677384
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
29308
American (AMR)
AF:
0.00
AC:
0
AN:
33896
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24430
East Asian (EAS)
AF:
0.00
AC:
0
AN:
33926
South Asian (SAS)
AF:
0.00
AC:
0
AN:
77480
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
41070
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4218
European-Non Finnish (NFE)
AF:
9.33e-7
AC:
1
AN:
1072122
Other (OTH)
AF:
0.00
AC:
0
AN:
56986
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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
Cov.:
32
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Sep 01, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Pro46Ser variant in RBM20 has not been previously reported in individuals with cardiomyopathy. Data from large population studies is insufficient to asses s the frequency of this variant. Computational prediction tools and conservation analysis are limited for this variant. In summary, the clinical significance of the p.Pro46Ser variant is uncertain. -

Dilated cardiomyopathy 1DD Uncertain:1
Jun 03, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt RBM20 protein function. ClinVar contains an entry for this variant (Variation ID: 505314). 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). This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 46 of the RBM20 protein (p.Pro46Ser). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.092
BayesDel_addAF
Uncertain
0.029
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
16
DANN
Uncertain
1.0
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.47
FATHMM_MKL
Benign
0.72
D
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.11
T
MetaSVM
Benign
-0.48
T
PhyloP100
1.8
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
0.010
N
REVEL
Benign
0.18
Sift
Uncertain
0.013
D
Sift4G
Uncertain
0.040
D
Vest4
0.27
MutPred
0.20
Gain of phosphorylation at P46 (P = 0.0064);
MVP
0.14
ClinPred
0.21
T
GERP RS
3.6
PromoterAI
-0.016
Neutral
gMVP
0.21
Mutation Taster
=94/6
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

Publications

Other links and lift over

dbSNP: rs1554886574; hg19: chr10-112404348; API