19-19149414-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001145785.2(MEF2B):​c.70C>T​(p.Arg24Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as other (no stars).

Frequency

Genomes: not found (cov: 30)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

MEF2B
NM_001145785.2 missense

Scores

13
4
2

Clinical Significance

- - O:1

Conservation

PhyloP100: 3.32
Variant links:
Genes affected
MEF2B (HGNC:6995): (myocyte enhancer factor 2B) The product of this gene is a member of the MADS/MEF2 family of DNA binding proteins. The protein is thought to regulate gene expression, including expression of the smooth muscle myosin heavy chain gene. This region undergoes considerable alternative splicing, with transcripts supporting two non-overlapping loci (GeneID 729991 and 100271849) as well as numerous read-through transcripts that span both loci (annotated as GeneID 4207). Several isoforms of this protein are expressed from either this locus or from some of the read-through transcripts annotated on GeneID 4207. [provided by RefSeq, Jan 2014]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.978

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MEF2BNM_001145785.2 linkuse as main transcriptc.70C>T p.Arg24Trp missense_variant 3/9 ENST00000424583.7
BORCS8-MEF2BNR_027308.2 linkuse as main transcriptn.536C>T non_coding_transcript_exon_variant 7/12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MEF2BENST00000424583.7 linkuse as main transcriptc.70C>T p.Arg24Trp missense_variant 3/95 NM_001145785.2 P4Q02080-2

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249570
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135076
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.0000462
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461886
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
6
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000374
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
30
Bravo
AF:
0.00000756

ClinVar

Significance: -
Submissions summary: Other:1
Revision: -
LINK: link

Submissions by phenotype

Neoplasm Other:1
-, criteria provided, single submitterclinical testingCenter for Genomic Medicine, Rigshospitalet, Copenhagen University HospitalJul 31, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.52
D
BayesDel_noAF
Pathogenic
0.51
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.50
.;.;T;.;.;T
Eigen
Uncertain
0.29
Eigen_PC
Benign
0.086
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Pathogenic
1.0
D;D;D;D;D;D
M_CAP
Pathogenic
0.60
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.3
.;.;.;H;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Pathogenic
0.96
D
PROVEAN
Pathogenic
-7.8
D;.;D;D;D;.
REVEL
Pathogenic
0.91
Sift
Pathogenic
0.0
D;.;D;D;D;.
Sift4G
Pathogenic
0.0
D;D;D;D;D;D
Polyphen
1.0
.;.;D;.;D;.
Vest4
0.96
MutPred
0.88
Loss of phosphorylation at T22 (P = 0.0497);.;Loss of phosphorylation at T22 (P = 0.0497);Loss of phosphorylation at T22 (P = 0.0497);Loss of phosphorylation at T22 (P = 0.0497);Loss of phosphorylation at T22 (P = 0.0497);
MVP
0.77
MPC
1.2
ClinPred
1.0
D
GERP RS
-0.24
gMVP
0.97

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: rs767499551; hg19: chr19-19260223; COSMIC: COSV50775213; COSMIC: COSV50775213; API