17-6800799-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000338694.7(TEKT1):​c.997G>A​(p.Ala333Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000013 in 1,613,936 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

TEKT1
ENST00000338694.7 missense

Scores

9
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.67
Variant links:
Genes affected
TEKT1 (HGNC:15534): (tektin 1) 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. This gene is predominantly expressed in the testis and in mouse, tektin 1 mRNA was localized to the spermatocytes and round spermatids in the seminiferous tubules, indicating that it may play a role in spermatogenesis. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TEKT1NM_053285.2 linkuse as main transcriptc.997G>A p.Ala333Thr missense_variant 7/8 ENST00000338694.7 NP_444515.1
TEKT1XM_011524027.4 linkuse as main transcriptc.853-565G>A intron_variant XP_011522329.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TEKT1ENST00000338694.7 linkuse as main transcriptc.997G>A p.Ala333Thr missense_variant 7/81 NM_053285.2 ENSP00000341346 P1
TEKT1ENST00000571744.1 linkuse as main transcriptc.187-11469G>A intron_variant 3 ENSP00000460197
TEKT1ENST00000572291.1 linkuse as main transcriptc.239-565G>A intron_variant 5 ENSP00000458518
TEKT1ENST00000575592.1 linkuse as main transcriptc.*588G>A 3_prime_UTR_variant, NMD_transcript_variant 6/72 ENSP00000460359

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152122
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
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:
0.0000438
AC:
11
AN:
251042
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135666
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1461814
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.000246
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:
0.0000331
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152122
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74300
show subpopulations
Gnomad4 AFR
AF:
0.0000724
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
Alfa
AF:
0.0000254
Hom.:
0
ExAC
AF:
0.0000494
AC:
6

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 GeneticsAug 10, 2021The c.997G>A (p.A333T) alteration is located in exon 7 (coding exon 6) of the TEKT1 gene. This alteration results from a G to A substitution at nucleotide position 997, causing the alanine (A) at amino acid position 333 to be replaced by a threonine (T). 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
0.16
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.032
T
Eigen
Uncertain
0.35
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Uncertain
0.87
D
M_CAP
Benign
0.025
D
MetaRNN
Uncertain
0.49
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.7
M
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.7
N
REVEL
Uncertain
0.30
Sift
Uncertain
0.020
D
Sift4G
Benign
0.14
T
Polyphen
0.88
P
Vest4
0.46
MVP
0.40
MPC
0.39
ClinPred
0.42
T
GERP RS
5.8
Varity_R
0.20
gMVP
0.30

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: rs561916829; hg19: chr17-6704118; COSMIC: COSV58622112; COSMIC: COSV58622112; API