Genetic Variant PRKAB2:c.*2770T>G (chr1-147156795-A-C) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_005399.5(PRKAB2):c.*2770T>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0511 in 152,238 control chromosomes in the GnomAD database, including 343 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.051 ( 343 hom., cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

PRKAB2
NM_005399.5 3_prime_UTR

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.107

Publications

5 publications found

Variant links:

Genes affected

PRKAB2 (HGNC:9379): (protein kinase AMP-activated non-catalytic subunit beta 2) 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 may be a positive regulator of AMPK activity. It is highly expressed in skeletal muscle and thus may have tissue-specific roles. Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2013]

PRKAB2 links:

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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=-0.89).

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.109 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRKAB2	NM_005399.5 link	c.*2770T>G		3_prime_UTR_variant	Exon 8 of 8	ENST00000254101.4	NP_005390.1	O43741-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRKAB2	ENST00000254101.4 link	c.*2770T>G		3_prime_UTR_variant	Exon 8 of 8	1	NM_005399.5	ENSP00000254101.3		O43741-1

Frequencies

GnomAD3 genomes

AF:

0.0510

AC:

7764

AN:

152120

Hom.:

342

Cov.:

show subpopulations

Gnomad AFR

AF:

0.111

Gnomad AMI

AF:

0.0407

Gnomad AMR

AF:

0.0365

Gnomad ASJ

AF:

0.0268

Gnomad EAS

AF:

0.00173

Gnomad SAS

AF:

0.0943

Gnomad FIN

AF:

0.00263

Gnomad MID

AF:

0.0222

Gnomad NFE

AF:

0.0274

Gnomad OTH

AF:

0.0478

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

African (AFR)

AC:

AN:

American (AMR)

AC:

AN:

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

East Asian (EAS)

AC:

AN:

South Asian (SAS)

AC:

AN:

European-Finnish (FIN)

AF:

0.00

AC:

AN:

Middle Eastern (MID)

AC:

AN:

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

Other (OTH)

AC:

AN:

GnomAD4 genome

AF:

0.0511

AC:

7774

AN:

152238

Hom.:

343

Cov.:

AF XY:

0.0498

AC XY:

3709

AN XY:

74442

show subpopulations

African (AFR)

AF:

0.111

AC:

4627

AN:

41522

American (AMR)

AF:

0.0365

AC:

557

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.0268

AC:

AN:

3470

East Asian (EAS)

AF:

0.00174

AC:

AN:

5184

South Asian (SAS)

AF:

0.0948

AC:

458

AN:

4830

European-Finnish (FIN)

AF:

0.00263

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.0204

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0273

AC:

1858

AN:

68010

Other (OTH)

AF:

0.0478

AC:

101

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

360

720

1081

1441

1801

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

176

264

352

440

<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:

0.0393

Hom.:

342

Bravo

AF:

0.0548

Asia WGS

AF:

0.0460

AC:

159

AN:

3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

3.0

(source)

DANN

Benign

0.66

PhyloP100

-0.11

Mutation Taster

=100/0

polymorphism (auto)

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over