12-21536516-T-TA

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_ModerateBA1

The NM_021957.4(GYS2):​c.*437_*438insT variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0235 in 190,982 control chromosomes in the GnomAD database, including 187 homozygotes. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.028 ( 187 hom., cov: 32)
Exomes 𝑓: 0.0041 ( 0 hom. )

Consequence

GYS2
NM_021957.4 3_prime_UTR

Scores

Not classified

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.412
Variant links:
Genes affected
GYS2 (HGNC:4707): (glycogen synthase 2) The protein encoded by this gene, liver glycogen synthase, catalyzes the rate-limiting step in the synthesis of glycogen - the transfer of a glucose molecule from UDP-glucose to a terminal branch of the glycogen molecule. Mutations in this gene cause glycogen storage disease type 0 (GSD-0) - a rare type of early childhood fasting hypoglycemia with decreased liver glycogen content. [provided by RefSeq, Dec 2009]
SPX (HGNC:28139): (spexin hormone) The protein encoded by this gene is a hormone involved in modulation of cardiovascular and renal function. It has also been shown in rats to cause weight loss. Several transcript variants have been found for this gene. [provided by RefSeq, Feb 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP6
Variant 12-21536516-T-TA is Benign according to our data. Variant chr12-21536516-T-TA is described in ClinVar as [Likely_benign]. Clinvar id is 307981.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0887 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GYS2NM_021957.4 linkuse as main transcriptc.*437_*438insT 3_prime_UTR_variant 16/16 ENST00000261195.3
LOC124902896XR_007063240.1 linkuse as main transcriptn.519-524dup intron_variant, non_coding_transcript_variant
GYS2XM_006719063.4 linkuse as main transcriptc.*437_*438insT 3_prime_UTR_variant 15/15
GYS2XM_024448960.2 linkuse as main transcriptc.*42+395_*42+396insT intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GYS2ENST00000261195.3 linkuse as main transcriptc.*437_*438insT 3_prime_UTR_variant 16/161 NM_021957.4 P1
SPXENST00000537527.1 linkuse as main transcriptn.472-524dup intron_variant, non_coding_transcript_variant 3
SPXENST00000649016.1 linkuse as main transcriptn.529-524dup intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.0284
AC:
4315
AN:
152034
Hom.:
186
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0911
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0148
Gnomad ASJ
AF:
0.00749
Gnomad EAS
AF:
0.0104
Gnomad SAS
AF:
0.00228
Gnomad FIN
AF:
0.000945
Gnomad MID
AF:
0.0253
Gnomad NFE
AF:
0.00215
Gnomad OTH
AF:
0.0311
GnomAD4 exome
AF:
0.00412
AC:
160
AN:
38830
Hom.:
0
Cov.:
0
AF XY:
0.00384
AC XY:
76
AN XY:
19812
show subpopulations
Gnomad4 AFR exome
AF:
0.0625
Gnomad4 AMR exome
AF:
0.0152
Gnomad4 ASJ exome
AF:
0.00409
Gnomad4 EAS exome
AF:
0.0110
Gnomad4 SAS exome
AF:
0.00157
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00172
Gnomad4 OTH exome
AF:
0.00643
GnomAD4 genome
AF:
0.0284
AC:
4326
AN:
152152
Hom.:
187
Cov.:
32
AF XY:
0.0276
AC XY:
2054
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.0911
Gnomad4 AMR
AF:
0.0148
Gnomad4 ASJ
AF:
0.00749
Gnomad4 EAS
AF:
0.0104
Gnomad4 SAS
AF:
0.00207
Gnomad4 FIN
AF:
0.000945
Gnomad4 NFE
AF:
0.00216
Gnomad4 OTH
AF:
0.0308
Bravo
AF:
0.0317
Asia WGS
AF:
0.0160
AC:
55
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Glycogen storage disorder due to hepatic 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

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: rs60154469; hg19: chr12-21689450; API