Variant 11-64746672-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_005609.4(PYGM):c.2516A>T(p.Asp839Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,880 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PYGM
NM_005609.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.80

Variant links:

Genes affected

PYGM (HGNC:9726): (glycogen phosphorylase, muscle associated) This gene encodes a muscle enzyme involved in glycogenolysis. Highly similar enzymes encoded by different genes are found in liver and brain. Mutations in this gene are associated with McArdle disease (myophosphorylase deficiency), a glycogen storage disease of muscle. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Sep 2009]

PYGM links:

PYGM (HGNC:):

PYGM links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PYGM	NM_005609.4 linkuse as main transcript	c.2516A>T	p.Asp839Val	missense_variant	20/20	ENST00000164139.4	NP_005600.1	P11217-1
PYGM	NM_001164716.1 linkuse as main transcript	c.2252A>T	p.Asp751Val	missense_variant	18/18		NP_001158188.1	P11217-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
PYGM	ENST00000164139.4 linkuse as main transcript	c.2516A>T	p.Asp839Val	missense_variant	20/20	1	NM_005609.4	ENSP00000164139.3	P11217-1
PYGM	ENST00000377432.7 linkuse as main transcript	c.2252A>T	p.Asp751Val	missense_variant	18/18	2		ENSP00000366650.3	P11217-2
PYGM	ENST00000483742.1 linkuse as main transcript	n.1869A>T		non_coding_transcript_exon_variant	3/3	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461880

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000383

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

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Glycogen storage disease, type V

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Uncertain

0.10

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.21

.;T

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.17

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.89

D;D

M_CAP

Uncertain

0.15

MetaRNN

Uncertain

0.51

D;D

MetaSVM

Uncertain

-0.10

MutationAssessor

Uncertain

2.1

.;M

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.43

PROVEAN

Benign

-2.2

N;N

REVEL

Uncertain

0.49

Sift

Benign

0.032

D;T

Sift4G

Benign

0.15

T;T

Polyphen

0.0030

.;B

Vest4

0.52

MutPred

0.26

.;Loss of solvent accessibility (P = 0.0098);

MVP

0.91

MPC

0.71

ClinPred

0.89

GERP RS

4.4

Varity_R

0.20

gMVP

0.62

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