rs3730358
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Variant summary
Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1
The NM_001382430.1(AKT1):c.175+18C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.154 in 1,610,612 control chromosomes in the GnomAD database, including 19,933 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).
Frequency
Genomes: 𝑓 0.17 ( 2164 hom., cov: 33)
Exomes 𝑓: 0.15 ( 17769 hom. )
Consequence
AKT1
NM_001382430.1 intron
NM_001382430.1 intron
Scores
2
Clinical Significance
Conservation
PhyloP100: -1.87
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]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -14 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
?
Variant 14-104780070-G-A is Benign according to our data. Variant chr14-104780070-G-A is described in ClinVar as [Benign]. Clinvar id is 1284750.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr14-104780070-G-A is described in Lovd as [Benign].
BA1
?
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.201 is higher than 0.05.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
AKT1 | NM_001382430.1 | c.175+18C>T | intron_variant | ENST00000649815.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
AKT1 | ENST00000649815.2 | c.175+18C>T | intron_variant | NM_001382430.1 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.167 AC: 25420AN: 152120Hom.: 2164 Cov.: 33
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GnomAD3 exomes AF: 0.160 AC: 39847AN: 249250Hom.: 3567 AF XY: 0.160 AC XY: 21589AN XY: 134964
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GnomAD4 exome AF: 0.153 AC: 223110AN: 1458374Hom.: 17769 Cov.: 32 AF XY: 0.154 AC XY: 111748AN XY: 725196
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GnomAD4 genome ? AF: 0.167 AC: 25426AN: 152238Hom.: 2164 Cov.: 33 AF XY: 0.166 AC XY: 12363AN XY: 74438
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ClinVar
Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Benign:2
Benign, no assertion criteria provided | clinical testing | Clinical Genetics, Academic Medical Center | - | - - |
Benign, no assertion criteria provided | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | - | - - |
Cowden syndrome 6 Benign:1
Benign, criteria provided, single submitter | clinical testing | Invitae | Feb 01, 2024 | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
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Splicing
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at