12-49002907-T-G

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002733.5(PRKAG1):c.988A>C(p.Lys330Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,613,966 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

PRKAG1
NM_002733.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.297

Variant links:

Genes affected

PRKAG1 (HGNC:9385): (protein kinase AMP-activated non-catalytic subunit gamma 1) The protein encoded by this gene is a regulatory subunit of the AMP-activated protein kinase (AMPK). AMPK is a heterotrimer consisting of an alpha catalytic subunit, and non-catalytic beta and gamma subunits. AMPK is an important energy-sensing enzyme that monitors cellular energy status. In response to cellular metabolic stresses, AMPK is activated, and thus phosphorylates and inactivates acetyl-CoA carboxylase (ACC) and beta-hydroxy beta-methylglutaryl-CoA reductase (HMGCR), key enzymes involved in regulating de novo biosynthesis of fatty acid and cholesterol. This subunit is one of the gamma regulatory subunits of AMPK. Alternatively spliced transcript variants encoding distinct isoforms have been observed. [provided by RefSeq, Jul 2008]

PRKAG1 links:

ENSG00000288710 (HGNC:):

ENSG00000288710 links:

DDN-AS1 (HGNC:53464): (DDN and PRKAG1 antisense RNA 1)

DDN-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.10946065).

BS2

High AC in GnomAd4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRKAG1	NM_002733.5 link	c.988A>C	p.Lys330Gln	missense_variant	Exon 12 of 12	ENST00000548065.7	NP_002724.1	P54619-1A0A024R125

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PRKAG1	ENST00000548065.7 link	c.988A>C	p.Lys330Gln	missense_variant	Exon 12 of 12	1	NM_002733.5	ENSP00000447433.1	P54619-1
PRKAG1	ENST00000548362.5 link	c.226-37A>C		intron_variant	Intron 3 of 3	3		ENSP00000446987.1	H0YHF8
ENSG00000288710	ENST00000683988.1 link	n.*1055A>C		non_coding_transcript_exon_variant	Exon 16 of 16			ENSP00000506939.1	A0A804HI77
ENSG00000288710	ENST00000683988.1 link	n.*1055A>C		3_prime_UTR_variant	Exon 16 of 16			ENSP00000506939.1	A0A804HI77

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251420

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135884

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.00

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:

0.0000123

AC:

AN:

1461650

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727126

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.00

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:

0.00000809

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152316

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74478

show subpopulations

Gnomad4 AFR

AF:

0.0000962

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000529

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 10, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1015A>C (p.K339Q) alteration is located in exon 12 (coding exon 12) of the PRKAG1 gene. This alteration results from a A to C substitution at nucleotide position 1015, causing the lysine (K) at amino acid position 339 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.29

CADD

Benign

DANN

Benign

0.87

DEOGEN2

Benign

0.073

.;.;T;.;.

Eigen

Benign

-0.64

Eigen_PC

Benign

-0.57

FATHMM_MKL

Benign

0.37

LIST_S2

Benign

0.68

T;T;T;T;T

M_CAP

Benign

0.052

MetaRNN

Benign

0.11

T;T;T;T;T

MetaSVM

Benign

-0.57

MutationAssessor

Benign

1.0

.;.;L;.;.

PrimateAI

Benign

0.44

PROVEAN

Benign

0.16

N;N;N;N;N

REVEL

Benign

0.27

Sift

Benign

0.13

T;T;T;T;T

Sift4G

Benign

0.34

T;T;T;T;T

Polyphen

0.17

.;.;B;.;.

Vest4

0.11

MutPred

0.39

.;.;Loss of methylation at K330 (P = 8e-04);.;.;

MVP

0.91

MPC

0.63

ClinPred

0.070

GERP RS

0.78

Varity_R

0.039

gMVP

0.52

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over