15-57633617-A-G

Position:

chr15-57633617-A-G

Variant summary

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

The NM_001018100.5(MYZAP):c.809A>G(p.Glu270Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000548 in 1,460,504 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

MYZAP
NM_001018100.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.21

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=0.28274515).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYZAP	NM_001018100.5 linkuse as main transcript	c.809A>G	p.Glu270Gly	missense_variant	8/13	ENST00000267853.10
GCOM1	NR_104367.2 linkuse as main transcript	n.940A>G		non_coding_transcript_exon_variant	8/16

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYZAP	ENST00000267853.10 linkuse as main transcript	c.809A>G	p.Glu270Gly	missense_variant	8/13	1	NM_001018100.5	P1	P0CAP1-1
MYZAP	ENST00000380565.8 linkuse as main transcript	c.809A>G	p.Glu270Gly	missense_variant	8/12	1			P0CAP1-4
GCOM1	ENST00000649429.1 linkuse as main transcript	c.809A>G	p.Glu270Gly	missense_variant	8/11
MYZAP	ENST00000461709.1 linkuse as main transcript			upstream_gene_variant		3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000400

AC:

AN:

250158

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135158

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:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000548

AC:

AN:

1460504

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

726466

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000720

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 03, 2022

The c.809A>G (p.E270G) alteration is located in exon 8 (coding exon 8) of the GCOM1 gene. This alteration results from a A to G substitution at nucleotide position 809, causing the glutamic acid (E) at amino acid position 270 to be replaced by a glycine (G). 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

Benign

0.30

BayesDel_addAF

Uncertain

0.070

BayesDel_noAF

Benign

-0.14

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.14

.;.;.;.;T;.

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.86

D;D;.;D;D;D

M_CAP

Benign

0.016

MetaRNN

Benign

0.28

T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.5

.;.;.;.;M;M

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.49

PROVEAN

Uncertain

-3.3

D;.;.;D;D;D

REVEL

Benign

0.16

Sift

Benign

0.11

T;.;.;T;T;T

Sift4G

Uncertain

0.0050

D;D;.;D;D;D

Polyphen

0.99, 1.0

.;.;.;.;D;D

Vest4

0.67

MutPred

0.12

Loss of stability (P = 0.0225);Loss of stability (P = 0.0225);Loss of stability (P = 0.0225);Loss of stability (P = 0.0225);Loss of stability (P = 0.0225);Loss of stability (P = 0.0225);

MVP

0.67

MPC

0.24

ClinPred

0.93

GERP RS

5.7

Varity_R

0.30

gMVP

0.49

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.

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