rs756751089
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Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PP3_ModerateBS2_Supporting
The NM_013254.4(TBK1):c.1201A>G(p.Lys401Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000964 in 1,556,480 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000093 ( 0 hom. )
Consequence
TBK1
NM_013254.4 missense
NM_013254.4 missense
Scores
4
9
6
Clinical Significance
Conservation
PhyloP100: 7.92
Genes affected
TBK1 (HGNC:11584): (TANK binding kinase 1) The NF-kappa-B (NFKB) complex of proteins is inhibited by I-kappa-B (IKB) proteins, which inactivate NFKB by trapping it in the cytoplasm. Phosphorylation of serine residues on the IKB proteins by IKB kinases marks them for destruction via the ubiquitination pathway, thereby allowing activation and nuclear translocation of the NFKB complex. The protein encoded by this gene is similar to IKB kinases and can mediate NFKB activation in response to certain growth factors. The protein is also an important kinase for antiviral innate immunity response. [provided by RefSeq, Sep 2021]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 3 ACMG points.
PM1
?
In a mutagenesis_site Decreases ubiquitination. Abolishes ubiquitination, phosphorylation and kinase activity; when associated with R-30. (size 0) in uniprot entity TBK1_HUMAN
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.844
BS2
?
High AC in GnomAdExome4 at 13 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TBK1 | NM_013254.4 | c.1201A>G | p.Lys401Glu | missense_variant | 10/21 | ENST00000331710.10 | |
TBK1 | XM_005268809.2 | c.1201A>G | p.Lys401Glu | missense_variant | 10/21 | ||
TBK1 | XM_005268810.2 | c.1201A>G | p.Lys401Glu | missense_variant | 10/21 | ||
TBK1 | XR_007063071.1 | n.1300A>G | non_coding_transcript_exon_variant | 10/18 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TBK1 | ENST00000331710.10 | c.1201A>G | p.Lys401Glu | missense_variant | 10/21 | 1 | NM_013254.4 | P4 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152150Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000441 AC: 1AN: 226572Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 122250
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GnomAD4 exome AF: 0.00000926 AC: 13AN: 1404330Hom.: 0 Cov.: 22 AF XY: 0.0000129 AC XY: 9AN XY: 699258
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GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152150Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74312
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ClinVar
Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Frontotemporal dementia and/or amyotrophic lateral sclerosis 4 Pathogenic:1Uncertain:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Jul 01, 2015 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Victorian Clinical Genetics Services, Murdoch Childrens Research Institute | Feb 02, 2022 | Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as VUS-3A. Following criteria are met: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with frontotemporal dementia and/or amyotrophic lateral sclerosis 4 (MIM#616439) (PMID: 27892983). (I) 0107 - This gene is associated with autosomal dominant disease. (I) 0200 - Variant is predicted to result in a missense amino acid change from lysine to glutamic acid. (I) 0251 - This variant is heterozygous. (I) 0302 - Variant is present in gnomAD <0.001 for a dominant condition (v3: 2 heterozygotes, 0 homozygotes). (SP) 0309 - An alternative amino acid change at the same position has been observed in gnomAD (v3; 1 heterozygote, 0 homozygotes). (I) 0502 - Missense variant with conflicting in silico predictions and uninformative conservation. (I) 0601 - Variant is located in the annotated TANK-binding kinase 1 coiled-coil domain 1 where this residue p.(Lys401) is known to undergo poly-ubiquitination. It is one of two such sites required for kinase activity and signalling (DECIPHER, NCBI, PMID: 23453972). (SP) 0705 - No comparable missense variants have previous evidence for pathogenicity. (I) 0809 - Previous evidence of pathogenicity for this variant is inconclusive. This variant has been reported in an individual with a clinical diagnosis of Alzheimers disease and post mortem findings suggested frontotemporal dementia (PMID: 25943890). (I) 0905 - No published segregation evidence has been identified for this variant. (I) 1010 - Functional evidence for this variant is conflicting. One study found this variant caused reduced TBK1 protein levels in post mortem brain tissue of an ALS patient, while another found it didn’t affect kinase activity, or protein stability and binding (PMID: 25943890, 31748271). (I) 1206 - This variant has been shown to be paternally inherited (by trio analysis). (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Benign
T
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D
M_CAP
Benign
D
MetaRNN
Pathogenic
D
MetaSVM
Benign
T
MutationAssessor
Uncertain
M
MutationTaster
Benign
D
PrimateAI
Uncertain
T
PROVEAN
Benign
N
REVEL
Uncertain
Sift
Uncertain
D
Sift4G
Uncertain
D
Polyphen
D
Vest4
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at