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GeneBe

chr2-171007038-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3

The NM_012290.5(TLK1):ā€‹c.1442A>Gā€‹(p.Tyr481Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,455,562 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 (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

TLK1
NM_012290.5 missense

Scores

6
9
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.01
Variant links:
Genes affected
TLK1 (HGNC:11841): (tousled like kinase 1) The protein encoded by this gene is a serine/threonine kinase that may be involved in the regulation of chromatin assembly. The encoded protein is only active when it is phosphorylated, and this phosphorylation is cell cycle-dependent, with the maximal activity of this protein coming during S phase. The catalytic activity of this protein is diminished by DNA damage and by blockage of DNA replication. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, TLK1
PP3
MetaRNN computational evidence supports a deleterious effect, 0.793

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TLK1NM_012290.5 linkuse as main transcriptc.1442A>G p.Tyr481Cys missense_variant 15/21 ENST00000431350.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TLK1ENST00000431350.7 linkuse as main transcriptc.1442A>G p.Tyr481Cys missense_variant 15/211 NM_012290.5 Q9UKI8-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1455562
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
723870
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:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 06, 2021The c.1442A>G (p.Y481C) alteration is located in exon 15 (coding exon 15) of the TLK1 gene. This alteration results from a A to G substitution at nucleotide position 1442, causing the tyrosine (Y) at amino acid position 481 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.92
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Uncertain
0.080
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.19
T;.;.;.
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.91
D;D;D;D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.79
D;D;D;D
MetaSVM
Benign
-0.32
T
MutationAssessor
Benign
1.2
L;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Pathogenic
0.90
D
PROVEAN
Pathogenic
-8.4
D;D;D;D
REVEL
Uncertain
0.64
Sift
Uncertain
0.0020
D;D;D;D
Sift4G
Uncertain
0.0020
D;D;D;D
Polyphen
1.0
D;D;.;.
Vest4
0.75
MutPred
0.54
Gain of sheet (P = 0.0827);.;.;.;
MVP
0.75
MPC
2.7
ClinPred
1.0
D
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.83
gMVP
0.93

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-171863548; API