rs558440936

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_001134363.3(RBM20):​c.3666C>G​(p.Phe1222Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000023 in 1,306,480 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 8.7e-7 ( 0 hom. )

Consequence

RBM20
NM_001134363.3 missense

Scores

4
12

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: -0.735
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.15503398).
BP6
Variant 10-110835960-C-G is Benign according to our data. Variant chr10-110835960-C-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1733723.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RBM20NM_001134363.3 linkc.3666C>G p.Phe1222Leu missense_variant Exon 14 of 14 ENST00000369519.4 NP_001127835.2 Q5T481
RBM20XM_017016103.3 linkc.3501C>G p.Phe1167Leu missense_variant Exon 14 of 14 XP_016871592.1
RBM20XM_017016104.3 linkc.3282C>G p.Phe1094Leu missense_variant Exon 14 of 14 XP_016871593.1
RBM20XM_047425116.1 linkc.3282C>G p.Phe1094Leu missense_variant Exon 14 of 14 XP_047281072.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RBM20ENST00000369519.4 linkc.3666C>G p.Phe1222Leu missense_variant Exon 14 of 14 1 NM_001134363.3 ENSP00000358532.3 Q5T481
RBM20ENST00000465774.2 linkn.607C>G non_coding_transcript_exon_variant Exon 2 of 2 4
RBM20ENST00000480343.2 linkn.299C>G non_coding_transcript_exon_variant Exon 3 of 3 4

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152226
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
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
GnomAD3 exomes
AF:
0.00000727
AC:
1
AN:
137466
Hom.:
0
AF XY:
0.0000137
AC XY:
1
AN XY:
73186
show subpopulations
Gnomad AFR exome
AF:
0.000136
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
8.66e-7
AC:
1
AN:
1154254
Hom.:
0
Cov.:
15
AF XY:
0.00000173
AC XY:
1
AN XY:
578690
show subpopulations
Gnomad4 AFR exome
AF:
0.0000386
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152226
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.0000482
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
Bravo
AF:
0.00000756

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Dec 27, 2023
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Has not been previously published as pathogenic or benign to our knowledge; Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function -

Cardiovascular phenotype Uncertain:1
Jun 26, 2020
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.F1222L variant (also known as c.3666C>G), located in coding exon 14 of the RBM20 gene, results from a C to G substitution at nucleotide position 3666. The phenylalanine at codon 1222 is replaced by leucine, an amino acid with highly similar properties. This amino acid position is well conserved in available vertebrate species; however, leucine is the reference amino acid in other vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Dilated cardiomyopathy 1DD Benign:1
Jul 25, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.56
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
0.029
DANN
Uncertain
0.98
Eigen
Benign
-0.88
Eigen_PC
Benign
-0.78
FATHMM_MKL
Benign
0.26
N
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-0.45
T
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-2.0
N
REVEL
Benign
0.13
Sift
Benign
0.073
T
Sift4G
Benign
0.18
T
Vest4
0.27
MutPred
0.21
Gain of catalytic residue at F1222 (P = 0.0169);
MVP
0.22
ClinPred
0.064
T
GERP RS
1.4
gMVP
0.20

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs558440936; hg19: chr10-112595718; API