rs117474773

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_021957.4(GYS2):​c.2054T>C​(p.Phe685Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00654 in 1,613,986 control chromosomes in the GnomAD database, including 31 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. F685F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0039 ( 2 hom., cov: 32)
Exomes 𝑓: 0.0068 ( 29 hom. )

Consequence

GYS2
NM_021957.4 missense

Scores

1
3
14

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 4.97

Publications

10 publications found
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 was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.007264048).
BP6
Variant 12-21537012-A-G is Benign according to our data. Variant chr12-21537012-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 137529.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00386 (587/152248) while in subpopulation NFE AF = 0.0075 (510/68018). AF 95% confidence interval is 0.00696. There are 2 homozygotes in GnomAd4. There are 255 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021957.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GYS2
NM_021957.4
MANE Select
c.2054T>Cp.Phe685Ser
missense
Exon 16 of 16NP_068776.2P54840

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GYS2
ENST00000261195.3
TSL:1 MANE Select
c.2054T>Cp.Phe685Ser
missense
Exon 16 of 16ENSP00000261195.2P54840
ENSG00000285854
ENST00000647960.1
n.*2056T>C
non_coding_transcript_exon
Exon 23 of 23ENSP00000497202.1A0A3B3IS95
ENSG00000285854
ENST00000647960.1
n.*2056T>C
3_prime_UTR
Exon 23 of 23ENSP00000497202.1A0A3B3IS95

Frequencies

GnomAD3 genomes
AF:
0.00387
AC:
588
AN:
152130
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00104
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00132
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00750
Gnomad OTH
AF:
0.00143
GnomAD2 exomes
AF:
0.00407
AC:
1022
AN:
251170
AF XY:
0.00401
show subpopulations
Gnomad AFR exome
AF:
0.00117
Gnomad AMR exome
AF:
0.00136
Gnomad ASJ exome
AF:
0.000595
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00240
Gnomad NFE exome
AF:
0.00765
Gnomad OTH exome
AF:
0.00376
GnomAD4 exome
AF:
0.00682
AC:
9962
AN:
1461738
Hom.:
29
Cov.:
31
AF XY:
0.00664
AC XY:
4826
AN XY:
727172
show subpopulations
African (AFR)
AF:
0.000986
AC:
33
AN:
33476
American (AMR)
AF:
0.00141
AC:
63
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.000498
AC:
13
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.000255
AC:
22
AN:
86256
European-Finnish (FIN)
AF:
0.00271
AC:
145
AN:
53416
Middle Eastern (MID)
AF:
0.00399
AC:
23
AN:
5764
European-Non Finnish (NFE)
AF:
0.00835
AC:
9281
AN:
1111894
Other (OTH)
AF:
0.00633
AC:
382
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
485
969
1454
1938
2423
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
344
688
1032
1376
1720
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00386
AC:
587
AN:
152248
Hom.:
2
Cov.:
32
AF XY:
0.00343
AC XY:
255
AN XY:
74446
show subpopulations
African (AFR)
AF:
0.00104
AC:
43
AN:
41540
American (AMR)
AF:
0.00105
AC:
16
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00132
AC:
14
AN:
10614
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.00750
AC:
510
AN:
68018
Other (OTH)
AF:
0.00142
AC:
3
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.509
Heterozygous variant carriers
0
30
60
90
120
150
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00605
Hom.:
7
Bravo
AF:
0.00381
TwinsUK
AF:
0.00998
AC:
37
ALSPAC
AF:
0.00675
AC:
26
ESP6500AA
AF:
0.00204
AC:
9
ESP6500EA
AF:
0.00744
AC:
64
ExAC
AF:
0.00428
AC:
520
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00632
EpiControl
AF:
0.00735

ClinVar

ClinVar submissions
Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
4
Glycogen storage disorder due to hepatic glycogen synthase deficiency (4)
-
-
2
not provided (2)
-
-
2
not specified (2)
-
-
1
GYS2-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.20
T
Eigen
Benign
-0.19
Eigen_PC
Benign
-0.074
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.75
T
M_CAP
Benign
0.047
D
MetaRNN
Benign
0.0073
T
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
0.97
L
PhyloP100
5.0
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-0.39
N
REVEL
Benign
0.20
Sift
Uncertain
0.0070
D
Sift4G
Benign
0.19
T
Polyphen
0.27
B
Vest4
0.47
MVP
0.76
MPC
0.38
ClinPred
0.021
T
GERP RS
5.5
Varity_R
0.24
gMVP
0.30
Mutation Taster
=93/7
polymorphism

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

Other links and lift over

dbSNP: rs117474773; hg19: chr12-21689946; COSMIC: COSV53928212; COSMIC: COSV53928212; API