Genetic Variant TESK1:p.Thr344Met (chr9-35608892-C-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_006285.3(TESK1):c.1031C>T(p.Thr344Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000206 in 1,600,426 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

TESK1
NM_006285.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.36

Variant links:

Genes affected

TESK1 (HGNC:11731): (testis associated actin remodelling kinase 1) This gene product is a serine/threonine protein kinase that contains an N-terminal protein kinase domain and a C-terminal proline-rich domain. Its protein kinase domain is most closely related to those of the LIM motif-containing protein kinases (LIMKs). The encoded protein can phosphorylate myelin basic protein and histone in vitro. The testicular germ cell-specific expression and developmental pattern of expression of the mouse gene suggests that this gene plays an important role at and after the meiotic phase of spermatogenesis. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Dec 2015]

TESK1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.24372691).

BS2

High AC in GnomAdExome4 at 29 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TESK1	NM_006285.3 link	c.1031C>T	p.Thr344Met	missense_variant	Exon 10 of 10	ENST00000336395.6	NP_006276.2	Q15569Q8NFJ4
TESK1	NM_001318230.2 link	c.551C>T	p.Thr184Met	missense_variant	Exon 9 of 9		NP_001305159.1	Q15569

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TESK1	ENST00000336395.6 link	c.1031C>T	p.Thr344Met	missense_variant	Exon 10 of 10	1	NM_006285.3	ENSP00000338127.5		Q15569
TESK1	ENST00000498522.5 link	n.1077C>T		non_coding_transcript_exon_variant	Exon 9 of 9	1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000371

AC:

AN:

242428

Hom.:

AF XY:

0.0000382

AC XY:

AN XY:

130902

show subpopulations

Gnomad AFR exome

AF:

0.0000621

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000477

Gnomad NFE exome

AF:

0.0000638

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000200

AC:

AN:

1448272

Hom.:

Cov.:

AF XY:

0.0000167

AC XY:

AN XY:

719046

show subpopulations

Gnomad4 AFR exome

AF:

0.0000604

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:

0.0000756

Gnomad4 NFE exome

AF:

0.0000172

Gnomad4 OTH exome

AF:

0.0000503

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152154

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000302

ExAC

AF:

0.0000577

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 31, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1031C>T (p.T344M) alteration is located in exon 10 (coding exon 10) of the TESK1 gene. This alteration results from a C to T substitution at nucleotide position 1031, causing the threonine (T) at amino acid position 344 to be replaced by a methionine (M). 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

Benign

0.090

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.26

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.041

T;T

Eigen

Benign

0.012

Eigen_PC

Benign

0.055

FATHMM_MKL

Benign

0.58

LIST_S2

Benign

0.77

T;.

M_CAP

Benign

0.027

MetaRNN

Benign

0.24

T;T

MetaSVM

Benign

-0.72

MutationAssessor

Benign

0.69

N;N

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-0.69

.;N

REVEL

Benign

0.17

Sift

Benign

0.070

.;T

Sift4G

Benign

0.11

T;T

Polyphen

0.99

D;D

Vest4

0.45

MutPred

0.11

Loss of phosphorylation at T344 (P = 0.024);Loss of phosphorylation at T344 (P = 0.024);

MVP

0.46

MPC

0.34

ClinPred

0.057

GERP RS

5.3

Varity_R

0.046

gMVP

0.28

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over