Variant 19-48969032-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_002103.5(GYS1):c.*256G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00132 in 655,316 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.0042 ( 4 hom., cov: 32)

Exomes 𝑓: 0.00045 ( 0 hom. )

Consequence

GYS1
NM_002103.5 3_prime_UTR

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.68

Variant links:

Genes affected

GYS1 (HGNC:4706): (glycogen synthase 1) The protein encoded by this gene catalyzes the addition of glucose monomers to the growing glycogen molecule through the formation of alpha-1,4-glycoside linkages. Mutations in this gene are associated with muscle glycogen storage disease. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Sep 2009]

GYS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.69).

BP6

Variant 19-48969032-C-T is Benign according to our data. Variant chr19-48969032-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 893306.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0042 (640/152240) while in subpopulation AFR AF= 0.0148 (616/41534). AF 95% confidence interval is 0.0139. There are 4 homozygotes in gnomad4. There are 315 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	#exon/exons	MANE
GYS1	NM_002103.5 linkuse as main transcript	c.*256G>A	3_prime_UTR_variant	16/16	ENST00000323798.8
GYS1	NM_001161587.2 linkuse as main transcript	c.*256G>A	3_prime_UTR_variant	15/15
GYS1	NR_027763.2 linkuse as main transcript	n.2485G>A	non_coding_transcript_exon_variant	15/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GYS1	ENST00000323798.8 linkuse as main transcript	c.*256G>A		3_prime_UTR_variant	16/16	1	NM_002103.5	P1	P13807-1
GYS1	ENST00000263276.6 linkuse as main transcript	c.*256G>A		3_prime_UTR_variant	15/15	1			P13807-2

Frequencies

GnomAD3 genomes

AF:

0.00420

AC:

639

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0149

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00287

GnomAD3 exomes

AF:

0.000888

AC:

108

AN:

121624

Hom.:

AF XY:

0.000780

AC XY:

AN XY:

66656

show subpopulations

Gnomad AFR exome

AF:

0.0152

Gnomad AMR exome

AF:

0.000580

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:

0.0000602

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000445

AC:

224

AN:

503076

Hom.:

Cov.:

AF XY:

0.000365

AC XY:

100

AN XY:

273612

show subpopulations

Gnomad4 AFR exome

AF:

0.0131

Gnomad4 AMR exome

AF:

0.000611

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:

0.0000137

Gnomad4 OTH exome

AF:

0.000686

GnomAD4 genome

AF:

0.00420

AC:

640

AN:

152240

Hom.:

Cov.:

AF XY:

0.00423

AC XY:

315

AN XY:

74446

show subpopulations

Gnomad4 AFR

AF:

0.0148

Gnomad4 AMR

AF:

0.00105

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00284

Alfa

AF:

0.00257

Hom.:

Bravo

AF:

0.00440

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Glycogen storage disease due to muscle and heart glycogen synthase deficiency

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Jun 08, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.69

CADD

Benign

0.47

DANN

Benign

0.84

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