19-48968447-T-C

Variant summary

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

The NM_002103.5(GYS1):​c.*841A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0045 in 454,488 control chromosomes in the GnomAD database, including 35 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.011 ( 29 hom., cov: 32)
Exomes 𝑓: 0.0014 ( 6 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: -0.200
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=-0.8).
BP6
Variant 19-48968447-T-C is Benign according to our data. Variant chr19-48968447-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 329794.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 = 0.0107 (1622/152240) while in subpopulation AFR AF= 0.036 (1495/41542). AF 95% confidence interval is 0.0345. There are 29 homozygotes in gnomad4. There are 749 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 29 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GYS1NM_002103.5 linkuse as main transcriptc.*841A>G 3_prime_UTR_variant 16/16 ENST00000323798.8
GYS1NM_001161587.2 linkuse as main transcriptc.*841A>G 3_prime_UTR_variant 15/15
GYS1NR_027763.2 linkuse as main transcriptn.3070A>G 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.*841A>G 3_prime_UTR_variant 16/161 NM_002103.5 P1P13807-1
GYS1ENST00000263276.6 linkuse as main transcriptc.*841A>G 3_prime_UTR_variant 15/151 P13807-2

Frequencies

GnomAD3 genomes
AF:
0.0105
AC:
1601
AN:
152122
Hom.:
28
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0356
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00602
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.00814
GnomAD3 exomes
AF:
0.00215
AC:
294
AN:
136594
Hom.:
1
AF XY:
0.00150
AC XY:
111
AN XY:
74178
show subpopulations
Gnomad AFR exome
AF:
0.0340
Gnomad AMR exome
AF:
0.00245
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000133
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000128
Gnomad OTH exome
AF:
0.00120
GnomAD4 exome
AF:
0.00140
AC:
424
AN:
302248
Hom.:
6
Cov.:
0
AF XY:
0.00104
AC XY:
180
AN XY:
172264
show subpopulations
Gnomad4 AFR exome
AF:
0.0344
Gnomad4 AMR exome
AF:
0.00224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000151
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000819
Gnomad4 OTH exome
AF:
0.00306
GnomAD4 genome
AF:
0.0107
AC:
1622
AN:
152240
Hom.:
29
Cov.:
32
AF XY:
0.0101
AC XY:
749
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.0360
Gnomad4 AMR
AF:
0.00602
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000191
Gnomad4 OTH
AF:
0.00806
Alfa
AF:
0.00371
Hom.:
3
Bravo
AF:
0.0117
Asia WGS
AF:
0.00346
AC:
12
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- -
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- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxMay 12, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
2.9
DANN
Benign
0.74
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: rs75797604; hg19: chr19-49471704; API