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rs759748655

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PP5_Moderate

The NM_032538.3(TTBK1):c.773G>A(p.Arg258Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000103 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

TTBK1
NM_032538.3 missense

Scores

2
9
8

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 5.83
Variant links:
Genes affected
TTBK1 (HGNC:19140): (tau tubulin kinase 1) Summary:This gene belongs to the casein kinase 1 superfamily. The encoded protein is a neuron-specific, serine/threonine and tyrosine kinase, which regulates phosphorylation of tau, a protein that associates with microtubule assemblies and stabilizes them. Genetic variants in this gene are associated with Alzheimer's disease. [provided by RefSeq, Jul 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PP5
Variant 6-43255768-G-A is Pathogenic according to our data. Variant chr6-43255768-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 208398.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TTBK1NM_032538.3 linkuse as main transcriptc.773G>A p.Arg258Gln missense_variant 9/15 ENST00000259750.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TTBK1ENST00000259750.9 linkuse as main transcriptc.773G>A p.Arg258Gln missense_variant 9/151 NM_032538.3 P3Q5TCY1-1
TTBK1ENST00000703836.1 linkuse as main transcriptc.773G>A p.Arg258Gln missense_variant 8/13 A2
TTBK1ENST00000304139.6 linkuse as main transcriptn.782G>A non_coding_transcript_exon_variant 8/135

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251380
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135874
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 SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461884
Hom.:
0
Cov.:
32
AF XY:
0.0000110
AC XY:
8
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000809
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
Cov.:
31
Bravo
AF:
0.0000151
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Childhood-onset schizophrenia Pathogenic:1
Likely pathogenic, criteria provided, single submitterresearchDr. Guy Rouleau's laboratory, McGill UniversityJan 01, 2014- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.094
T
BayesDel_noAF
Benign
-0.28
Cadd
Pathogenic
34
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.13
T;.
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.97
D;D
M_CAP
Benign
0.015
T
MetaRNN
Uncertain
0.68
D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.5
L;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.79
T
PROVEAN
Uncertain
-3.8
D;D
REVEL
Uncertain
0.32
Sift
Uncertain
0.020
D;T
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.54
MutPred
0.55
Gain of catalytic residue at R258 (P = 0.0836);.;
MVP
0.26
MPC
0.77
ClinPred
0.97
D
GERP RS
4.5
Varity_R
0.79
gMVP
0.91

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs759748655; hg19: chr6-43223506; API