12-21536994-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_021957.4(GYS2):​c.2072C>T​(p.Pro691Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000118 in 1,613,788 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

GYS2
NM_021957.4 missense

Scores

5
14

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.56
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 Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.012943506).
BP6
Variant 12-21536994-G-A is Benign according to our data. Variant chr12-21536994-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 798247.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GYS2NM_021957.4 linkuse as main transcriptc.2072C>T p.Pro691Leu missense_variant 16/16 ENST00000261195.3
LOC124902896XR_007063240.1 linkuse as main transcriptn.519-52G>A intron_variant, non_coding_transcript_variant
GYS2XM_024448960.2 linkuse as main transcriptc.2072C>T p.Pro691Leu missense_variant 16/17
GYS2XM_006719063.4 linkuse as main transcriptc.1841C>T p.Pro614Leu missense_variant 15/15

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GYS2ENST00000261195.3 linkuse as main transcriptc.2072C>T p.Pro691Leu missense_variant 16/161 NM_021957.4 P1
SPXENST00000537527.1 linkuse as main transcriptn.472-52G>A intron_variant, non_coding_transcript_variant 3
SPXENST00000649016.1 linkuse as main transcriptn.529-52G>A intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.000717
AC:
109
AN:
152022
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00247
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000328
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:
0.00
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000127
AC:
32
AN:
251140
Hom.:
0
AF XY:
0.0000663
AC XY:
9
AN XY:
135730
show subpopulations
Gnomad AFR exome
AF:
0.00191
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000554
AC:
81
AN:
1461648
Hom.:
0
Cov.:
31
AF XY:
0.0000523
AC XY:
38
AN XY:
727138
show subpopulations
Gnomad4 AFR exome
AF:
0.00230
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.000716
AC:
109
AN:
152140
Hom.:
0
Cov.:
32
AF XY:
0.000538
AC XY:
40
AN XY:
74384
show subpopulations
Gnomad4 AFR
AF:
0.00246
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000159
Hom.:
0
Bravo
AF:
0.000763
ESP6500AA
AF:
0.00204
AC:
9
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000173
AC:
21
Asia WGS
AF:
0.000289
AC:
1
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 testingInvitaeOct 29, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.25
T
Eigen
Benign
-0.089
Eigen_PC
Benign
-0.068
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.030
D
MetaRNN
Benign
0.013
T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
0.63
N
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.5
N
REVEL
Benign
0.13
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0070
D
Polyphen
0.83
P
Vest4
0.21
MVP
0.81
MPC
0.12
ClinPred
0.082
T
GERP RS
3.6
Varity_R
0.085
gMVP
0.48

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: rs144564037; hg19: chr12-21689928; API