rs200758840

Variant names:

Variant summary

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

The NM_013254.4(TBK1):c.992C>T(p.Thr331Ile) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000204 in 1,519,392 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. T331T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

TBK1
NM_013254.4 missense, splice_region

Scores

Splicing: ADA: 0.9575

Clinical Significance

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

Conservation

PhyloP100: 4.38

Publications

2 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 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TBK1	NM_013254.4 link	c.992C>T	p.Thr331Ile	missense_variant, splice_region_variant	Exon 8 of 21	ENST00000331710.10	NP_037386.1	Q9UHD2
TBK1	XM_005268809.2 link	c.992C>T	p.Thr331Ile	missense_variant, splice_region_variant	Exon 8 of 21		XP_005268866.1	Q9UHD2
TBK1	XM_005268810.2 link	c.992C>T	p.Thr331Ile	missense_variant, splice_region_variant	Exon 8 of 21		XP_005268867.1	Q9UHD2
TBK1	XR_007063071.1 link	n.1091C>T		splice_region_variant, non_coding_transcript_exon_variant	Exon 8 of 18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TBK1	ENST00000331710.10 link	c.992C>T	p.Thr331Ile	missense_variant, splice_region_variant	Exon 8 of 21	1	NM_013254.4	ENSP00000329967.5		Q9UHD2

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

151966

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000253

AC:

AN:

197858

AF XY:

0.0000369

show subpopulations

Gnomad AFR exome

AF:

0.0000770

Gnomad AMR exome

AF:

0.0000447

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000319

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000197

AC:

AN:

1367426

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

679390

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

29616

American (AMR)

AF:

0.0000301

AC:

AN:

33270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23464

East Asian (EAS)

AF:

0.0000279

AC:

AN:

35820

South Asian (SAS)

AF:

0.0000136

AC:

AN:

73620

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50392

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5352

European-Non Finnish (NFE)

AF:

0.0000226

AC:

AN:

1059746

Other (OTH)

AF:

0.00

AC:

AN:

56146

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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:

0.0000263

AC:

AN:

151966

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74210

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41340

American (AMR)

AF:

0.00

AC:

AN:

15234

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10580

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68010

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000274

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Frontotemporal dementia and/or amyotrophic lateral sclerosis 4

Uncertain:1

Jun 18, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 331 of the TBK1 protein (p.Thr331Ile). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has been reported in the amyotrophic lateral sclerosis variant database (PMID: 25700176, www.alsdb.org). ClinVar contains an entry for this variant (Variation ID: 475942). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. 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. -

not provided

Uncertain:1

Sep 26, 2019

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 25700176) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.41

BayesDel_addAF

Uncertain

0.032

BayesDel_noAF

Benign

-0.19

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.40

Eigen

Uncertain

0.38

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.052

MetaRNN

Uncertain

0.56

MetaSVM

Benign

-0.61

MutationAssessor

Uncertain

2.1

PhyloP100

4.4

PrimateAI

Uncertain

0.65

PROVEAN

Uncertain

-3.9

REVEL

Uncertain

0.33

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.010

Polyphen

0.97

Vest4

0.62

MVP

0.41

MPC

0.45

ClinPred

0.32

GERP RS

5.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.64

gMVP

0.77

Mutation Taster

=41/59

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

0.96

dbscSNV1_RF

Benign

0.47

SpliceAI score (max)

0.070

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over