Genetic Variant TBK1:c.1960-10G>A (chr12-64497638-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_013254.4(TBK1):c.1960-10G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 0)

Exomes 𝑓: 0.0000059 ( 0 hom. )

Consequence

TBK1
NM_013254.4 intron

Scores

Splicing: ADA: 0.0003317

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.199

Publications

0 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: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.7).

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
TBK1	NM_013254.4 link	c.1960-10G>A	intron_variant	Intron 18 of 20	ENST00000331710.10	NP_037386.1	Q9UHD2
TBK1	XM_005268809.2 link	c.1960-10G>A	intron_variant	Intron 18 of 20		XP_005268866.1	Q9UHD2
TBK1	XM_005268810.2 link	c.1960-10G>A	intron_variant	Intron 18 of 20		XP_005268867.1	Q9UHD2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TBK1	ENST00000331710.10 link	c.1960-10G>A		intron_variant	Intron 18 of 20	1	NM_013254.4	ENSP00000329967.5		Q9UHD2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000595

AC:

AN:

504286

Hom.:

Cov.:

AF XY:

0.0000119

AC XY:

AN XY:

252988

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.0000803

AC:

AN:

12448

American (AMR)

AF:

0.00

AC:

AN:

9066

Ashkenazi Jewish (ASJ)

AF:

0.000101

AC:

AN:

9874

East Asian (EAS)

AF:

0.00

AC:

AN:

21308

South Asian (SAS)

AF:

0.0000569

AC:

AN:

17588

European-Finnish (FIN)

AF:

0.00

AC:

AN:

21826

Middle Eastern (MID)

AF:

0.00

AC:

AN:

1808

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

386472

Other (OTH)

AF:

0.00

AC:

AN:

23896

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.292

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.70

CADD

Benign

6.7

(source)

DANN

Benign

0.73

PhyloP100

-0.20

PromoterAI

-0.0061

Neutral

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00033

dbscSNV1_RF

Benign

0.024

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over