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GeneBe

19-48968987-C-T

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_002103.5(GYS1):​c.*301G>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 0.00281 in 611,936 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0019 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0031 ( 12 hom. )

Consequence

GYS1
NM_002103.5 3_prime_UTR

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 0.249
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.44).
BP6
Variant 19-48968987-C-T is Benign according to our data. Variant chr19-48968987-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 329801.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=2}.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00185 (282/152346) while in subpopulation SAS AF= 0.00704 (34/4832). AF 95% confidence interval is 0.00518. There are 1 homozygotes in gnomad4. There are 146 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 12 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GYS1NM_002103.5 linkuse as main transcriptc.*301G>A 3_prime_UTR_variant 16/16 ENST00000323798.8
GYS1NM_001161587.2 linkuse as main transcriptc.*301G>A 3_prime_UTR_variant 15/15
GYS1NR_027763.2 linkuse as main transcriptn.2530G>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.*301G>A 3_prime_UTR_variant 16/161 NM_002103.5 P1P13807-1
GYS1ENST00000263276.6 linkuse as main transcriptc.*301G>A 3_prime_UTR_variant 15/151 P13807-2

Frequencies

GnomAD3 genomes
AF:
0.00185
AC:
282
AN:
152228
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000555
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00229
Gnomad ASJ
AF:
0.00662
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00703
Gnomad FIN
AF:
0.000941
Gnomad MID
AF:
0.0222
Gnomad NFE
AF:
0.00198
Gnomad OTH
AF:
0.00669
GnomAD3 exomes
AF:
0.00331
AC:
450
AN:
136062
Hom.:
2
AF XY:
0.00384
AC XY:
284
AN XY:
73928
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00222
Gnomad ASJ exome
AF:
0.00641
Gnomad EAS exome
AF:
0.0000959
Gnomad SAS exome
AF:
0.00957
Gnomad FIN exome
AF:
0.000186
Gnomad NFE exome
AF:
0.00181
Gnomad OTH exome
AF:
0.00654
GnomAD4 exome
AF:
0.00313
AC:
1437
AN:
459590
Hom.:
12
Cov.:
0
AF XY:
0.00366
AC XY:
919
AN XY:
250752
show subpopulations
Gnomad4 AFR exome
AF:
0.000654
Gnomad4 AMR exome
AF:
0.00190
Gnomad4 ASJ exome
AF:
0.00659
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00963
Gnomad4 FIN exome
AF:
0.000364
Gnomad4 NFE exome
AF:
0.00202
Gnomad4 OTH exome
AF:
0.00384
GnomAD4 genome
AF:
0.00185
AC:
282
AN:
152346
Hom.:
1
Cov.:
32
AF XY:
0.00196
AC XY:
146
AN XY:
74498
show subpopulations
Gnomad4 AFR
AF:
0.000553
Gnomad4 AMR
AF:
0.00229
Gnomad4 ASJ
AF:
0.00662
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00704
Gnomad4 FIN
AF:
0.000941
Gnomad4 NFE
AF:
0.00198
Gnomad4 OTH
AF:
0.00662
Alfa
AF:
0.00240
Hom.:
0
Bravo
AF:
0.00182
Asia WGS
AF:
0.00404
AC:
14
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Glycogen storage disease due to muscle and heart glycogen synthase deficiency Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
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- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.44
CADD
Benign
13
DANN
Benign
0.93

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: rs147489255; hg19: chr19-49472244; API