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GeneBe

19-48968380-C-T

Variant summary

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

The NM_002103.5(GYS1):​c.*908G>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 0.0128 in 454,380 control chromosomes in the GnomAD database, including 92 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0076 ( 10 hom., cov: 32)
Exomes 𝑓: 0.015 ( 82 hom. )

Consequence

GYS1
NM_002103.5 3_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.600
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]

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=-0.51).
BP6
Variant 19-48968380-C-T is Benign according to our data. Variant chr19-48968380-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 329792.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00759 (1155/152144) while in subpopulation SAS AF= 0.038 (183/4822). AF 95% confidence interval is 0.0335. There are 10 homozygotes in gnomad4. There are 634 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 10 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GYS1NM_002103.5 linkuse as main transcriptc.*908G>A 3_prime_UTR_variant 16/16 ENST00000323798.8
GYS1NM_001161587.2 linkuse as main transcriptc.*908G>A 3_prime_UTR_variant 15/15
GYS1NR_027763.2 linkuse as main transcriptn.3137G>A non_coding_transcript_exon_variant 15/15

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GYS1ENST00000323798.8 linkuse as main transcriptc.*908G>A 3_prime_UTR_variant 16/161 NM_002103.5 P1P13807-1
GYS1ENST00000263276.6 linkuse as main transcriptc.*908G>A 3_prime_UTR_variant 15/151 P13807-2

Frequencies

GnomAD3 genomes
AF:
0.00760
AC:
1156
AN:
152026
Hom.:
10
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00167
Gnomad AMI
AF:
0.00771
Gnomad AMR
AF:
0.00295
Gnomad ASJ
AF:
0.00461
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0381
Gnomad FIN
AF:
0.0187
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00916
Gnomad OTH
AF:
0.00622
GnomAD3 exomes
AF:
0.0129
AC:
1768
AN:
136628
Hom.:
28
AF XY:
0.0157
AC XY:
1163
AN XY:
74178
show subpopulations
Gnomad AFR exome
AF:
0.00186
Gnomad AMR exome
AF:
0.00388
Gnomad ASJ exome
AF:
0.00686
Gnomad EAS exome
AF:
0.0000952
Gnomad SAS exome
AF:
0.0414
Gnomad FIN exome
AF:
0.0170
Gnomad NFE exome
AF:
0.00990
Gnomad OTH exome
AF:
0.00890
GnomAD4 exome
AF:
0.0154
AC:
4651
AN:
302236
Hom.:
82
Cov.:
0
AF XY:
0.0180
AC XY:
3093
AN XY:
172256
show subpopulations
Gnomad4 AFR exome
AF:
0.00140
Gnomad4 AMR exome
AF:
0.00389
Gnomad4 ASJ exome
AF:
0.00658
Gnomad4 EAS exome
AF:
0.000109
Gnomad4 SAS exome
AF:
0.0407
Gnomad4 FIN exome
AF:
0.0168
Gnomad4 NFE exome
AF:
0.0104
Gnomad4 OTH exome
AF:
0.0112
GnomAD4 genome
AF:
0.00759
AC:
1155
AN:
152144
Hom.:
10
Cov.:
32
AF XY:
0.00853
AC XY:
634
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.00166
Gnomad4 AMR
AF:
0.00295
Gnomad4 ASJ
AF:
0.00461
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0380
Gnomad4 FIN
AF:
0.0187
Gnomad4 NFE
AF:
0.00916
Gnomad4 OTH
AF:
0.00616
Alfa
AF:
0.00866
Hom.:
3
Bravo
AF:
0.00590
Asia WGS
AF:
0.0120
AC:
41
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary hyperferritinemia with congenital cataracts Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
Neuroferritinopathy Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxMay 20, 2021- -
Glycogen storage disease due to muscle and heart glycogen synthase deficiency Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.51
CADD
Benign
6.9
DANN
Benign
0.72
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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.

Other links and lift over

dbSNP: rs117997270; hg19: chr19-49471637; API