chr14-104774967-G-A

Position:

chr14-104774967-G-A

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBA1

The NM_001382430.1(AKT1):c.604C>T(p.Leu202=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00698 in 1,612,822 control chromosomes in the GnomAD database, including 676 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. L202L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.036 ( 337 hom., cov: 33)

Exomes 𝑓: 0.0040 ( 339 hom. )

Consequence

AKT1
NM_001382430.1 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 3.04

Variant links:

Genes affected

AKT1 (HGNC:391): (AKT serine/threonine kinase 1) This gene encodes one of the three members of the human AKT serine-threonine protein kinase family which are often referred to as protein kinase B alpha, beta, and gamma. These highly similar AKT proteins all have an N-terminal pleckstrin homology domain, a serine/threonine-specific kinase domain and a C-terminal regulatory domain. These proteins are phosphorylated by phosphoinositide 3-kinase (PI3K). AKT/PI3K forms a key component of many signalling pathways that involve the binding of membrane-bound ligands such as receptor tyrosine kinases, G-protein coupled receptors, and integrin-linked kinase. These AKT proteins therefore regulate a wide variety of cellular functions including cell proliferation, survival, metabolism, and angiogenesis in both normal and malignant cells. AKT proteins are recruited to the cell membrane by phosphatidylinositol 3,4,5-trisphosphate (PIP3) after phosphorylation of phosphatidylinositol 4,5-bisphosphate (PIP2) by PI3K. Subsequent phosphorylation of both threonine residue 308 and serine residue 473 is required for full activation of the AKT1 protein encoded by this gene. Phosphorylation of additional residues also occurs, for example, in response to insulin growth factor-1 and epidermal growth factor. Protein phosphatases act as negative regulators of AKT proteins by dephosphorylating AKT or PIP3. The PI3K/AKT signalling pathway is crucial for tumor cell survival. Survival factors can suppress apoptosis in a transcription-independent manner by activating AKT1 which then phosphorylates and inactivates components of the apoptotic machinery. AKT proteins also participate in the mammalian target of rapamycin (mTOR) signalling pathway which controls the assembly of the eukaryotic translation initiation factor 4F (eIF4E) complex and this pathway, in addition to responding to extracellular signals from growth factors and cytokines, is disregulated in many cancers. Mutations in this gene are associated with multiple types of cancer and excessive tissue growth including Proteus syndrome and Cowden syndrome 6, and breast, colorectal, and ovarian cancers. Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2020]

AKT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6

Variant 14-104774967-G-A is Benign according to our data. Variant chr14-104774967-G-A is described in ClinVar as [Benign]. Clinvar id is 416469.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr14-104774967-G-A is described in Lovd as [Benign].

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.122 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AKT1	NM_001382430.1 linkuse as main transcript	c.604C>T	p.Leu202=	synonymous_variant	8/15	ENST00000649815.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AKT1	ENST00000649815.2 linkuse as main transcript	c.604C>T	p.Leu202=	synonymous_variant	8/15		NM_001382430.1	P1	P31749-1

Frequencies

GnomAD3 genomes

AF:

0.0359

AC:

5461

AN:

151982

Hom.:

337

Cov.:

show subpopulations

Gnomad AFR

AF:

0.125

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0123

Gnomad ASJ

AF:

0.000577

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000831

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000603

Gnomad OTH

AF:

0.0263

GnomAD3 exomes

AF:

0.00969

AC:

2425

AN:

250248

Hom.:

146

AF XY:

0.00707

AC XY:

957

AN XY:

135302

show subpopulations

Gnomad AFR exome

AF:

0.127

Gnomad AMR exome

AF:

0.00666

Gnomad ASJ exome

AF:

0.000598

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000229

Gnomad FIN exome

AF:

0.000330

Gnomad NFE exome

AF:

0.000637

Gnomad OTH exome

AF:

0.00540

GnomAD4 exome

AF:

0.00396

AC:

5791

AN:

1460722

Hom.:

339

Cov.:

AF XY:

0.00346

AC XY:

2513

AN XY:

726678

show subpopulations

Gnomad4 AFR exome

AF:

0.132

Gnomad4 AMR exome

AF:

0.00770

Gnomad4 ASJ exome

AF:

0.000689

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000302

Gnomad4 FIN exome

AF:

0.000247

Gnomad4 NFE exome

AF:

0.000342

Gnomad4 OTH exome

AF:

0.00886

GnomAD4 genome

AF:

0.0359

AC:

5463

AN:

152100

Hom.:

337

Cov.:

AF XY:

0.0340

AC XY:

2531

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.125

Gnomad4 AMR

AF:

0.0123

Gnomad4 ASJ

AF:

0.000577

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000832

Gnomad4 FIN

AF:

0.000188

Gnomad4 NFE

AF:

0.000603

Gnomad4 OTH

AF:

0.0261

Alfa

AF:

0.0164

Hom.:

Bravo

AF:

0.0413

Asia WGS

AF:

0.00635

AC:

AN:

3478

EpiCase

AF:

0.000818

EpiControl

AF:

0.000831

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, Amsterdam University Medical Center	-	- -

Cowden syndrome 6

Benign:2

Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 31, 2024	- -
Benign, criteria provided, single submitter	clinical testing	KCCC/NGS Laboratory, Kuwait Cancer Control Center	Jul 07, 2023	- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Apr 03, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Benign

0.75

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.25

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.25

Position offset: -6

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