chr19-48968171-ACACT-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP6BS1BS2

The NM_002103.5(GYS1):​c.*1113_*1116del variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00295 in 453,768 control chromosomes in the GnomAD database, including 12 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0070 ( 8 hom., cov: 32)
Exomes 𝑓: 0.00091 ( 4 hom. )

Consequence

GYS1
NM_002103.5 3_prime_UTR

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 1.61
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 -9 ACMG points.

BP6
Variant 19-48968171-ACACT-A is Benign according to our data. Variant chr19-48968171-ACACT-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 329790.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00699 (1064/152260) while in subpopulation AFR AF= 0.0245 (1018/41556). AF 95% confidence interval is 0.0232. There are 8 homozygotes in gnomad4. There are 490 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 8 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GYS1NM_002103.5 linkuse as main transcriptc.*1113_*1116del 3_prime_UTR_variant 16/16 ENST00000323798.8
GYS1NM_001161587.2 linkuse as main transcriptc.*1113_*1116del 3_prime_UTR_variant 15/15
GYS1NR_027763.2 linkuse as main transcriptn.3342_3345del 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.*1113_*1116del 3_prime_UTR_variant 16/161 NM_002103.5 P1P13807-1
GYS1ENST00000263276.6 linkuse as main transcriptc.*1113_*1116del 3_prime_UTR_variant 15/151 P13807-2

Frequencies

GnomAD3 genomes
AF:
0.00701
AC:
1067
AN:
152142
Hom.:
8
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0246
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00216
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00527
GnomAD3 exomes
AF:
0.00144
AC:
190
AN:
132320
Hom.:
1
AF XY:
0.00115
AC XY:
83
AN XY:
72198
show subpopulations
Gnomad AFR exome
AF:
0.0266
Gnomad AMR exome
AF:
0.00103
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000447
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000247
GnomAD4 exome
AF:
0.000905
AC:
273
AN:
301508
Hom.:
4
AF XY:
0.000634
AC XY:
109
AN XY:
171790
show subpopulations
Gnomad4 AFR exome
AF:
0.0265
Gnomad4 AMR exome
AF:
0.00103
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000503
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000631
Gnomad4 OTH exome
AF:
0.000998
GnomAD4 genome
AF:
0.00699
AC:
1064
AN:
152260
Hom.:
8
Cov.:
32
AF XY:
0.00658
AC XY:
490
AN XY:
74440
show subpopulations
Gnomad4 AFR
AF:
0.0245
Gnomad4 AMR
AF:
0.00216
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00521
Alfa
AF:
0.00365
Hom.:
1
Bravo
AF:
0.00788
Asia WGS
AF:
0.00144
AC:
6
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
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- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxSep 16, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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: rs148396922; hg19: chr19-49471428; API