17-15304004-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_031898.3(TEKT3):​c.1405G>A​(p.Asp469Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000144 in 1,461,874 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D469H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

TEKT3
NM_031898.3 missense

Scores

7
7
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.49
Variant links:
Genes affected
TEKT3 (HGNC:14293): (tektin 3) This gene product belongs to the tektin family of proteins. Tektins comprise a family of filament-forming proteins that are coassembled with tubulins to form ciliary and flagellar microtubules. The exact function of this gene is not known. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.979

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TEKT3NM_031898.3 linkuse as main transcriptc.1405G>A p.Asp469Asn missense_variant 9/9 ENST00000395930.6
LOC124903932XR_007065633.1 linkuse as main transcriptn.298-855C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TEKT3ENST00000395930.6 linkuse as main transcriptc.1405G>A p.Asp469Asn missense_variant 9/91 NM_031898.3 P1
ENST00000654786.1 linkuse as main transcriptn.138-3657C>T intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251476
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000217
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1461874
Hom.:
0
Cov.:
29
AF XY:
0.0000179
AC XY:
13
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000151
Gnomad4 SAS exome
AF:
0.000139
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 GeneticsMar 30, 2024The c.1405G>A (p.D469N) alteration is located in exon 9 (coding exon 7) of the TEKT3 gene. This alteration results from a G to A substitution at nucleotide position 1405, causing the aspartic acid (D) at amino acid position 469 to be replaced by an asparagine (N). 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
Benign
-0.27
T
BayesDel_noAF
Benign
-0.33
CADD
Pathogenic
27
DANN
Uncertain
0.99
DEOGEN2
Benign
0.36
T;T
Eigen
Pathogenic
0.90
Eigen_PC
Pathogenic
0.82
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
.;D
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.98
D;D
MetaSVM
Benign
-0.76
T
MutationAssessor
Pathogenic
3.3
M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.66
T
PROVEAN
Pathogenic
-4.9
D;D
REVEL
Uncertain
0.46
Sift
Uncertain
0.0030
D;D
Sift4G
Uncertain
0.0060
D;D
Polyphen
1.0
D;D
Vest4
0.97
MutPred
0.92
Loss of ubiquitination at K472 (P = 0.0284);Loss of ubiquitination at K472 (P = 0.0284);
MVP
0.54
MPC
0.63
ClinPred
0.97
D
GERP RS
5.1
Varity_R
0.87
gMVP
0.82

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

LitVar

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

Other links and lift over

dbSNP: rs752793646; hg19: chr17-15207321; COSMIC: COSV58627012; API