dbSNP rs141804012: PRKAG2:p.Ser157Ser (chr7-151675633-G-A) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_ModerateBP6BP7BS1BS2

The NM_016203.4(PRKAG2):c.471C>T(p.Ser157Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000524 in 1,612,480 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). Synonymous variant affecting the same amino acid position (i.e. S157S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00055 ( 0 hom. )

Consequence

PRKAG2
NM_016203.4 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:12

Conservation

PhyloP100: -1.05

Publications

4 publications found

Variant links:

Genes affected

PRKAG2 (HGNC:9386): (protein kinase AMP-activated non-catalytic subunit gamma 2) AMP-activated protein kinase (AMPK) is a heterotrimeric protein composed of a catalytic alpha subunit, a noncatalytic beta subunit, and a noncatalytic regulatory gamma subunit. Various forms of each of these subunits exist, encoded by different genes. AMPK is an important energy-sensing enzyme that monitors cellular energy status and functions by inactivating key enzymes involved in regulating de novo biosynthesis of fatty acid and cholesterol. This gene is a member of the AMPK gamma subunit family. Mutations in this gene have been associated with Wolff-Parkinson-White syndrome, familial hypertrophic cardiomyopathy, and glycogen storage disease of the heart. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jan 2015]

PRKAG2 Gene-Disease associations (from GenCC):

hypertrophic cardiomyopathy 6
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
PRKAG2-related cardiomyopathy
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
lethal congenital glycogen storage disease of heart
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
Wolff-Parkinson-White syndrome
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)

PRKAG2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.43).

BP6

Variant 7-151675633-G-A is Benign according to our data. Variant chr7-151675633-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 45721.

BP7

Synonymous conserved (PhyloP=-1.05 with no splicing effect.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000276 (42/152136) while in subpopulation SAS AF = 0.000621 (3/4830). AF 95% confidence interval is 0.000379. There are 0 homozygotes in GnomAd4. There are 13 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 42 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016203.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
PRKAG2	NM_016203.4	MANE Select	c.471C>T	p.Ser157Ser	synonymous	Exon 4 of 16	NP_057287.2
PRKAG2	NM_001407021.1		c.471C>T	p.Ser157Ser	synonymous	Exon 4 of 15	NP_001393950.1
PRKAG2	NM_001407022.1		c.471C>T	p.Ser157Ser	synonymous	Exon 4 of 15	NP_001393951.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PRKAG2	ENST00000287878.9	TSL:1 MANE Select	c.471C>T	p.Ser157Ser	synonymous	Exon 4 of 16	ENSP00000287878.3	Q9UGJ0-1
PRKAG2	ENST00000392801.6	TSL:1	c.339C>T	p.Ser113Ser	synonymous	Exon 4 of 16	ENSP00000376549.2	Q9UGJ0-3
PRKAG2	ENST00000488258.5	TSL:1	n.471C>T		non_coding_transcript_exon	Exon 4 of 10	ENSP00000420783.1	F8WDA1

Frequencies

GnomAD3 genomes

AF:

0.000276

AC:

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000514

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000279

AC:

AN:

251292

AF XY:

0.000228

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000217

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000370

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000550

AC:

803

AN:

1460344

Hom.:

Cov.:

AF XY:

0.000551

AC XY:

400

AN XY:

726598

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33458

American (AMR)

AF:

0.000134

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.000101

AC:

AN:

39686

South Asian (SAS)

AF:

0.000417

AC:

AN:

86230

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000656

AC:

729

AN:

1110586

Other (OTH)

AF:

0.000464

AC:

AN:

60352

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

142

189

236

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

128

160

<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:

0.000276

AC:

AN:

152136

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74310

show subpopulations

African (AFR)

AF:

0.0000724

AC:

AN:

41414

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.000621

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000514

AC:

AN:

68036

Other (OTH)

AF:

0.000478

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

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:

0.000457

Hom.:

Bravo

AF:

0.000196

EpiCase

AF:

0.000491

EpiControl

AF:

0.000237

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (5)

not provided (3)

Cardiomyopathy (2)

Cardiovascular phenotype (1)

Hypertrophic cardiomyopathy 6 (1)

Lethal congenital glycogen storage disease of heart (1)

Wolff-Parkinson-White pattern (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.096

BayesDel_noAF

Benign

-0.43

CADD

Benign

(source)

DANN

Benign

0.67

PhyloP100

-1.1

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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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