4-106046678-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001163435.3(TBCK):ā€‹c.2574T>Gā€‹(p.Phe858Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000696 in 1,435,908 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 7.0e-7 ( 0 hom. )

Consequence

TBCK
NM_001163435.3 missense, splice_region

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.58
Variant links:
Genes affected
TBCK (HGNC:28261): (TBC1 domain containing kinase) This gene encodes a protein that contains a protein kinase domain, a Rhodanase-like domain and the Tre-2/Bub2/Cdc16 (TBC) domain. The encoded protein is thought to play a role in actin organization, cell growth and cell proliferation by regulating the mammalian target of the rapamycin (mTOR) signaling pathway. This protein may also be involved in the transcriptional regulation of the components of the mTOR complex. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2014]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.40672752).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TBCKNM_001163435.3 linkuse as main transcriptc.2574T>G p.Phe858Leu missense_variant, splice_region_variant 26/26 ENST00000394708.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TBCKENST00000394708.7 linkuse as main transcriptc.2574T>G p.Phe858Leu missense_variant, splice_region_variant 26/261 NM_001163435.3 P1Q8TEA7-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.96e-7
AC:
1
AN:
1435908
Hom.:
0
Cov.:
25
AF XY:
0.00000140
AC XY:
1
AN XY:
715846
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000168
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeMay 06, 2022This variant has not been reported in the literature in individuals affected with TBCK-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces phenylalanine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 858 of the TBCK protein (p.Phe858Leu). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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 v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.95
BayesDel_addAF
Benign
0.0069
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.077
T;T;.;.;T
Eigen
Benign
-0.19
Eigen_PC
Benign
-0.11
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.89
.;D;D;D;.
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.41
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.1
M;M;.;.;M
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Uncertain
-3.0
D;D;D;D;D
REVEL
Benign
0.15
Sift
Benign
0.036
D;D;D;D;D
Sift4G
Benign
0.35
T;T;T;T;T
Polyphen
0.033
B;B;P;B;B
Vest4
0.66
MutPred
0.52
Loss of catalytic residue at F858 (P = 0.0019);Loss of catalytic residue at F858 (P = 0.0019);.;.;Loss of catalytic residue at F858 (P = 0.0019);
MVP
0.26
MPC
0.32
ClinPred
0.97
D
GERP RS
1.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.35
gMVP
0.84

Splicing

Name
Calibrated prediction
Score
Prediction
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

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-106967835; API