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GeneBe

19-48968918-T-G

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_002103.5(GYS1):​c.*370A>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000168 in 495,516 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.00018 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 0 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: -0.283
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 -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant 19-48968918-T-G is Benign according to our data. Variant chr19-48968918-T-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 329800.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=2}.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000184 (28/152246) while in subpopulation EAS AF= 0.00521 (27/5180). AF 95% confidence interval is 0.00368. There are 0 homozygotes in gnomad4. There are 14 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GYS1NM_002103.5 linkuse as main transcriptc.*370A>C 3_prime_UTR_variant 16/16 ENST00000323798.8
GYS1NM_001161587.2 linkuse as main transcriptc.*370A>C 3_prime_UTR_variant 15/15
GYS1NR_027763.2 linkuse as main transcriptn.2599A>C 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.*370A>C 3_prime_UTR_variant 16/161 NM_002103.5 P1P13807-1
GYS1ENST00000263276.6 linkuse as main transcriptc.*370A>C 3_prime_UTR_variant 15/151 P13807-2

Frequencies

GnomAD3 genomes
AF:
0.000184
AC:
28
AN:
152128
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00520
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000424
AC:
57
AN:
134428
Hom.:
0
AF XY:
0.000273
AC XY:
20
AN XY:
73276
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000410
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00526
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000244
GnomAD4 exome
AF:
0.000160
AC:
55
AN:
343270
Hom.:
0
Cov.:
0
AF XY:
0.000119
AC XY:
23
AN XY:
192756
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000353
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00392
Gnomad4 SAS exome
AF:
0.0000500
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000107
Gnomad4 OTH exome
AF:
0.0000590
GnomAD4 genome
AF:
0.000184
AC:
28
AN:
152246
Hom.:
0
Cov.:
32
AF XY:
0.000188
AC XY:
14
AN XY:
74426
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00521
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000249
Asia WGS
AF:
0.00144
AC:
5
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
-0.79
CADD
Benign
5.9
DANN
Benign
0.68

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: rs185366453; hg19: chr19-49472175; API