1-56670576-G-T

Variant names:

• chr1-56670576-G-T
• rs2746342
• NM_006252.4:c.95-3805G>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_006252.4(PRKAA2):​c.95-3805G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.639 in 151,998 control chromosomes in the GnomAD database, including 31,287 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 0.64 (31287 hom., cov: 32)
• Consequence: PRKAA2 NM_006252.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.487
• Publications: 13 publications found

Genes affected

PRKAA2 (HGNC:9377): (protein kinase AMP-activated catalytic subunit alpha 2) The protein encoded by this gene is a catalytic 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. Studies of the mouse counterpart suggest that this catalytic subunit may control whole-body insulin sensitivity and is necessary for maintaining myocardial energy homeostasis during ischemia. [provided by RefSeq, Jul 2008]

ACMG classification

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

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.97).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.693 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006252.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRKAA2	NM_006252.4	MANE Select	c.95-3805G>T		intron	N/A	NP_006243.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRKAA2	ENST00000371244.9	TSL:1 MANE Select	c.95-3805G>T		intron	N/A	ENSP00000360290.4
	PRKAA2	ENST00000860136.1		c.95-3805G>T		intron	N/A	ENSP00000530195.1
	PRKAA2	ENST00000860138.1		c.95-3805G>T		intron	N/A	ENSP00000530197.1

Frequencies

GnomAD3 genomes AF: 0.639 AC: 97103 AN: 151880 Hom.: 31269 Cov.: 32

Gnomad AFR AF: 0.700

Gnomad AMI AF: 0.687

Gnomad AMR AF: 0.511

Gnomad ASJ AF: 0.649

Gnomad EAS AF: 0.564

Gnomad SAS AF: 0.691

Gnomad FIN AF: 0.604

Gnomad MID AF: 0.712

Gnomad NFE AF: 0.637

Gnomad OTH AF: 0.630

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.639 AC: 97156 AN: 151998 Hom.: 31287 Cov.: 32 AF XY: 0.636 AC XY: 47234 AN XY: 74302

African (AFR) AF: 0.700 AC: 29011 AN: 41456

American (AMR) AF: 0.511 AC: 7790 AN: 15256

Ashkenazi Jewish (ASJ) AF: 0.649 AC: 2253 AN: 3470

East Asian (EAS) AF: 0.564 AC: 2909 AN: 5154

South Asian (SAS) AF: 0.691 AC: 3328 AN: 4818

European-Finnish (FIN) AF: 0.604 AC: 6375 AN: 10556

Middle Eastern (MID) AF: 0.714 AC: 210 AN: 294

European-Non Finnish (NFE) AF: 0.637 AC: 43327 AN: 67972

Other (OTH) AF: 0.629 AC: 1328 AN: 2112

Alfa AF: 0.624 Hom.: 13525

Bravo AF: 0.630

Asia WGS AF: 0.598 AC: 2079 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.97
CADD	Benign	0.20
DANN	Benign	0.41
PhyloP100		-0.49
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs2746342; hg19: chr1-57136249; COSMIC: COSV64802900;