15-57618139-A-G

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001018100.5(MYZAP):c.269A>G(p.Tyr90Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000341 in 1,614,062 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

MYZAP
NM_001018100.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.41

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]

MYZAP links:

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]

GCOM1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.4174164).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYZAP	NM_001018100.5 link	c.269A>G	p.Tyr90Cys	missense_variant	Exon 3 of 13	ENST00000267853.10	NP_001018110.1	P0CAP1-1A0A024R5W4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYZAP	ENST00000267853.10 link	c.269A>G	p.Tyr90Cys	missense_variant	Exon 3 of 13	1	NM_001018100.5	ENSP00000267853.5		P0CAP1-1
GCOM1	ENST00000587652.5 link	c.269A>G	p.Tyr90Cys	missense_variant	Exon 3 of 15	2		ENSP00000465231.1		H8Y6P7

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000289

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000835

AC:

AN:

251442

Hom.:

AF XY:

0.0000809

AC XY:

AN XY:

135896

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00159

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000363

AC:

AN:

1461876

Hom.:

Cov.:

AF XY:

0.0000413

AC XY:

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00142

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.000289

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000171

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Feb 18, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.269A>G (p.Y90C) alteration is located in exon 3 (coding exon 3) of the GCOM1 gene. This alteration results from a A to G substitution at nucleotide position 269, causing the tyrosine (Y) at amino acid position 90 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.53

BayesDel_addAF

Uncertain

0.048

BayesDel_noAF

Uncertain

0.010

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.081

.;.;.;.;T;.;.

Eigen

Uncertain

0.64

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.91

D;D;.;D;D;D;D

M_CAP

Benign

0.019

MetaRNN

Benign

0.42

T;T;T;T;T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Uncertain

2.2

.;.;.;.;M;M;.

PrimateAI

Pathogenic

0.83

PROVEAN

Uncertain

-3.9

D;.;.;D;D;D;D

REVEL

Benign

0.27

Sift

Benign

0.030

D;.;.;D;D;D;D

Sift4G

Uncertain

0.014

D;D;.;D;D;D;D

Polyphen

1.0

.;.;.;.;D;D;.

Vest4

0.91

MutPred

0.61

Loss of phosphorylation at Y90 (P = 0.0346);Loss of phosphorylation at Y90 (P = 0.0346);Loss of phosphorylation at Y90 (P = 0.0346);Loss of phosphorylation at Y90 (P = 0.0346);Loss of phosphorylation at Y90 (P = 0.0346);Loss of phosphorylation at Y90 (P = 0.0346);.;

MVP

0.64

MPC

0.29

ClinPred

0.81

GERP RS

6.2

Varity_R

0.17

gMVP

0.54

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over