NM_021957.4:c.1436C>A

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PP3_StrongPP5_Very_Strong

The NM_021957.4(GYS2):c.1436C>A(p.Pro479Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000875 in 1,599,262 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000086 ( 0 hom. )

Consequence

GYS2
NM_021957.4 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: 9.93

Publications

9 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]

GYS2 Gene-Disease associations (from GenCC):

glycogen storage disorder due to hepatic glycogen synthase deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, ClinGen, Genomics England PanelApp

GYS2 links:

ENSG00000285854 (HGNC:):

ENSG00000285854 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.945

PP5

Variant 12-21546457-G-T is Pathogenic according to our data. Variant chr12-21546457-G-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 16051.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

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.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GYS2	NM_021957.4	MANE Select	c.1436C>A	p.Pro479Gln	missense	Exon 12 of 16	NP_068776.2	P54840

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GYS2	ENST00000261195.3	TSL:1 MANE Select	c.1436C>A	p.Pro479Gln	missense	Exon 12 of 16	ENSP00000261195.2	P54840
ENSG00000285854	ENST00000647960.1		n.*1438C>A		non_coding_transcript_exon	Exon 19 of 23	ENSP00000497202.1	A0A3B3IS95
ENSG00000285854	ENST00000647960.1		n.*1438C>A		3_prime_UTR	Exon 19 of 23	ENSP00000497202.1	A0A3B3IS95

Frequencies

GnomAD3 genomes

AF:

0.0000989

AC:

AN:

151694

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000577

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000177

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000651

AC:

AN:

245762

AF XY:

0.0000678

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000296

Gnomad ASJ exome

AF:

0.000304

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000986

Gnomad OTH exome

AF:

0.000167

GnomAD4 exome

AF:

0.0000864

AC:

125

AN:

1447568

Hom.:

Cov.:

AF XY:

0.0000846

AC XY:

AN XY:

720614

show subpopulations

African (AFR)

AF:

0.0000302

AC:

AN:

33138

American (AMR)

AF:

0.0000226

AC:

AN:

44238

Ashkenazi Jewish (ASJ)

AF:

0.000348

AC:

AN:

25876

East Asian (EAS)

AF:

0.00

AC:

AN:

39560

South Asian (SAS)

AF:

0.00

AC:

AN:

84848

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53156

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.0000990

AC:

109

AN:

1101146

Other (OTH)

AF:

0.0000835

AC:

AN:

59854

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.457

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000989

AC:

AN:

151694

Hom.:

Cov.:

AF XY:

0.0000675

AC XY:

AN XY:

74058

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41250

American (AMR)

AF:

0.00

AC:

AN:

15246

Ashkenazi Jewish (ASJ)

AF:

0.000577

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4812

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10454

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.000177

AC:

AN:

67972

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.538

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000864

Hom.:

Bravo

AF:

0.0000756

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000989

AC:

ClinVar

ClinVar submissions

Significance:Pathogenic/Likely pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Glycogen storage disorder due to hepatic glycogen synthase deficiency (5)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Pathogenic

0.35

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.78

Eigen

Pathogenic

0.95

Eigen_PC

Pathogenic

0.85

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

1.0

M_CAP

Uncertain

0.10

MetaRNN

Pathogenic

0.95

MetaSVM

Uncertain

0.60

MutationAssessor

Pathogenic

3.4

PhyloP100

9.9

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-7.8

REVEL

Pathogenic

0.85

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.99

MVP

0.93

MPC

0.52

ClinPred

0.91

GERP RS

4.5

Varity_R

0.84

gMVP

0.93

Mutation Taster

=14/86

disease causing

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over