chr17-15314169-G-A

Variant summary

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

The NM_031898.3(TEKT3):​c.796C>T​(p.Arg266Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000502 in 1,614,084 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

TEKT3
NM_031898.3 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.38
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]

Genome browser will be placed here

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=0.3907428).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TEKT3NM_031898.3 linkuse as main transcriptc.796C>T p.Arg266Trp missense_variant 6/9 ENST00000395930.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TEKT3ENST00000395930.6 linkuse as main transcriptc.796C>T p.Arg266Trp missense_variant 6/91 NM_031898.3 P1
TEKT3ENST00000338696.6 linkuse as main transcriptc.796C>T p.Arg266Trp missense_variant 4/71 P1
TEKT3ENST00000539245.5 linkuse as main transcriptc.298C>T p.Arg100Trp missense_variant 7/85
TEKT3ENST00000395931.6 linkuse as main transcriptc.*96C>T 3_prime_UTR_variant, NMD_transcript_variant 4/85

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152196
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000477
AC:
12
AN:
251458
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000163
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000547
AC:
80
AN:
1461888
Hom.:
0
Cov.:
34
AF XY:
0.0000646
AC XY:
47
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000227
Gnomad4 SAS exome
AF:
0.000313
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000387
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152196
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsDec 22, 2023The c.796C>T (p.R266W) alteration is located in exon 6 (coding exon 4) of the TEKT3 gene. This alteration results from a C to T substitution at nucleotide position 796, causing the arginine (R) at amino acid position 266 to be replaced by a tryptophan (W). 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
0.24
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
14
DANN
Benign
0.91
DEOGEN2
Benign
0.075
T;T;T
Eigen
Benign
-0.42
Eigen_PC
Benign
-0.42
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.90
.;D;D
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.39
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.9
M;M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-2.1
N;N;N
REVEL
Benign
0.19
Sift
Benign
0.18
T;T;T
Sift4G
Benign
0.18
T;T;.
Polyphen
0.0050
B;B;.
Vest4
0.46
MutPred
0.38
Loss of disorder (P = 0.013);Loss of disorder (P = 0.013);.;
MVP
0.37
MPC
0.15
ClinPred
0.12
T
GERP RS
3.3
Varity_R
0.28
gMVP
0.70

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: rs774941459; hg19: chr17-15217486; API