Variant 3-81489913-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_000158.4(GBE1):c.*494A>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00362 in 155,178 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0037 ( 4 hom., cov: 32)

Exomes 𝑓: 0.00068 ( 0 hom. )

Consequence

GBE1
NM_000158.4 3_prime_UTR

Scores

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: -0.0350

Variant links:

Genes affected

GBE1 (HGNC:4180): (1,4-alpha-glucan branching enzyme 1) The protein encoded by this gene is a glycogen branching enzyme that catalyzes the transfer of alpha-1,4-linked glucosyl units from the outer end of a glycogen chain to an alpha-1,6 position on the same or a neighboring glycogen chain. Branching of the chains is essential to increase the solubility of the glycogen molecule and, consequently, in reducing the osmotic pressure within cells. Highest level of this enzyme are found in liver and muscle. Mutations in this gene are associated with glycogen storage disease IV (also known as Andersen's disease). [provided by RefSeq, Jul 2008]

GBE1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.79).

BP6

Variant 3-81489913-T-A is Benign according to our data. Variant chr3-81489913-T-A is described in ClinVar as [Benign]. Clinvar id is 899980.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GBE1	NM_000158.4 linkuse as main transcript	c.*494A>T		3_prime_UTR_variant	16/16	ENST00000429644.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GBE1	ENST00000429644.7 linkuse as main transcript	c.*494A>T		3_prime_UTR_variant	16/16	1	NM_000158.4	P1
GBE1	ENST00000489715.1 linkuse as main transcript			downstream_gene_variant		2

Frequencies

GnomAD3 genomes

AF:

0.00364

AC:

553

AN:

152104

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00881

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00753

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0222

Gnomad NFE

AF:

0.000779

Gnomad OTH

AF:

0.00574

GnomAD4 exome

AF:

0.000677

AC:

AN:

2956

Hom.:

Cov.:

AF XY:

0.000655

AC XY:

AN XY:

1526

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0294

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:

0.00

Gnomad4 OTH exome

AF:

0.00490

GnomAD4 genome

AF:

0.00367

AC:

559

AN:

152222

Hom.:

Cov.:

AF XY:

0.00359

AC XY:

267

AN XY:

74426

show subpopulations

Gnomad4 AFR

AF:

0.00896

Gnomad4 AMR

AF:

0.00746

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000780

Gnomad4 OTH

AF:

0.00568

Bravo

AF:

0.00491

Asia WGS

AF:

0.000868

AC:

AN:

3472

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Glycogen storage disease, type IV

Benign:1

Benign, 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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Adult polyglucosan body disease

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.79

CADD

Benign

1.7

DANN

Benign

0.47

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

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