rs55824172

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM5PP3

The NM_013254.4(TBK1):c.452C>G(p.Ser151Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000192 in 1,612,542 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S151F) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

TBK1
NM_013254.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.05

Publications

9 publications found

Variant links:

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]

TBK1 Gene-Disease associations (from GenCC):

frontotemporal dementia and/or amyotrophic lateral sclerosis 4
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, ClinGen, Labcorp Genetics (formerly Invitae)
frontotemporal dementia with motor neuron disease
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
encephalopathy, acute, infection-induced (herpes-specific), susceptibility to, 8
Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
autoinflammation with arthritis and vasculitis
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

TBK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chr12-64466994-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 266068.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.755

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_013254.4. 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
	TBK1	NM_013254.4	MANE Select	c.452C>G	p.Ser151Cys	missense	Exon 5 of 21	NP_037386.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
TBK1	ENST00000331710.10	TSL:1 MANE Select	c.452C>G	p.Ser151Cys	missense	Exon 5 of 21	ENSP00000329967.5
TBK1	ENST00000650790.1		c.452C>G	p.Ser151Cys	missense	Exon 5 of 21	ENSP00000498995.1
TBK1	ENST00000677641.1		c.452C>G	p.Ser151Cys	missense	Exon 5 of 21	ENSP00000504637.1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000799

AC:

AN:

250376

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000199

AC:

AN:

1460424

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

726552

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33414

American (AMR)

AF:

0.00

AC:

AN:

44530

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26088

East Asian (EAS)

AF:

0.00

AC:

AN:

39536

South Asian (SAS)

AF:

0.00

AC:

AN:

86090

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53396

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.0000243

AC:

AN:

1111292

Other (OTH)

AF:

0.0000332

AC:

AN:

60316

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.511

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152118

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74306

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41418

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.700

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

TBK1-related disorder

Uncertain:1

Aug 15, 2023

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The TBK1 c.452C>G variant is predicted to result in the amino acid substitution p.Ser151Cys. To our knowledge, this variant has not been reported in individuals with TBK1-related disorders. The p.Ser151Cys substitution has been reported to decrease TBK1 kinase activity (Ye et al. 2019. PubMed ID: 31748271). This variant is reported in 0.00088% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/12-64860774-C-G). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence.

Frontotemporal dementia and/or amyotrophic lateral sclerosis 4

Uncertain:1

Jul 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces serine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 151 of the TBK1 protein (p.Ser151Cys). This variant is present in population databases (no rsID available, gnomAD 0.002%). This missense change has been observed in individual(s) with amyotrophic lateral sclerosis (Invitae). ClinVar contains an entry for this variant (Variation ID: 1464768). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt TBK1 protein function with a negative predictive value of 95%. Experimental studies have shown that this missense change affects TBK1 function (PMID: 31748271). This variant disrupts the p.Ser151 amino acid residue in TBK1. Other variant(s) that disrupt this residue have been observed in individuals with TBK1-related conditions (Invitae), which suggests that this may be a clinically significant amino acid residue. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.45

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.040

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.27

Eigen

Uncertain

0.63

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.87

M_CAP

Benign

0.073

MetaRNN

Pathogenic

0.76

MetaSVM

Benign

-0.44

MutationAssessor

Benign

1.9

PhyloP100

6.1

PrimateAI

Pathogenic

0.83

PROVEAN

Uncertain

-3.2

REVEL

Uncertain

0.40

Sift

Uncertain

0.0010

Sift4G

Benign

0.089

Polyphen

1.0

Vest4

0.78

MutPred

0.59

Loss of disorder (P = 0.068)

MVP

0.62

MPC

1.1

ClinPred

0.95

GERP RS

5.2

Varity_R

0.73

gMVP

0.82

Mutation Taster

=20/80

disease causing

(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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over