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GeneBe

15-57621638-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP5

The NM_001018100.5(MYZAP):​c.349C>T​(p.Arg117Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000151 in 1,461,390 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 Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

MYZAP
NM_001018100.5 stop_gained

Scores

2
3
2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 1.28
Variant links:
Genes affected
MYZAP (HGNC:43444): (myocardial zonula adherens protein) This gene encodes a protein that is abundantly expressed in cardiac tissue. The encoded protein localizes to intercalated discs in cardiomyocytes and functions as an activator of Rho-dependent serum-response factor signaling. Alternative splicing results in multiple transcript variants. Readthrough transcription also exists between this gene and the neighboring downstream gene POLR2M (polymerase (RNA) II (DNA directed) polypeptide M) and is represented with GeneID: 145781. [provided by RefSeq, Mar 2014]
GCOM1 (HGNC:26424): (GCOM1, MYZAP-POLR2M combined locus) This locus represents naturally occurring readthrough transcription between the neighboring MYZAP (myocardial zonula adherens protein) and POLR2M (polymerase (RNA) II (DNA directed) polypeptide M) genes on chromosome 15. Alternative splicing results in multiple readthrough transcript variants. Readthrough variants may encode proteins that share sequence identity with the upstream gene product or with both the upstream and downstream gene products. Some readthrough transcript variants are also expected to be candidates for nonsense-mediated decay (NMD). [provided by RefSeq, Oct 2013]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 15-57621638-C-T is Pathogenic according to our data. Variant chr15-57621638-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 3252117.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYZAPNM_001018100.5 linkuse as main transcriptc.349C>T p.Arg117Ter stop_gained 4/13 ENST00000267853.10
GCOM1NR_104367.2 linkuse as main transcriptn.480C>T non_coding_transcript_exon_variant 4/16

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYZAPENST00000267853.10 linkuse as main transcriptc.349C>T p.Arg117Ter stop_gained 4/131 NM_001018100.5 P1P0CAP1-1
MYZAPENST00000380565.8 linkuse as main transcriptc.349C>T p.Arg117Ter stop_gained 4/121 P0CAP1-4
GCOM1ENST00000649429.1 linkuse as main transcriptc.349C>T p.Arg117Ter stop_gained 4/11
MYZAPENST00000569089.1 linkuse as main transcriptc.304C>T p.Arg102Ter stop_gained 5/64

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251088
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135692
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000151
AC:
22
AN:
1461390
Hom.:
0
Cov.:
30
AF XY:
0.0000151
AC XY:
11
AN XY:
726980
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000162
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.0000468
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

CARDIOMYOPATHY, DILATED, 2K Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJul 15, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.50
D
BayesDel_noAF
Pathogenic
0.57
CADD
Pathogenic
37
DANN
Uncertain
1.0
Eigen
Uncertain
0.46
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Benign
0.74
D
MutationTaster
Benign
1.0
A;A;A;A;A;D;D;D;D
Vest4
0.36
GERP RS
2.7

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: rs748202049; hg19: chr15-57913836; COSMIC: COSV99985153; API