rs11553577

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_015631.6(TCTN3):​c.193A>G​(p.Thr65Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000387 in 1,551,482 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T65P) has been classified as Benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

TCTN3
NM_015631.6 missense

Scores

19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.939

Publications

14 publications found
Variant links:
Genes affected
TCTN3 (HGNC:24519): (tectonic family member 3) This gene encodes a member of the tectonic gene family which functions in Hedgehog signal transduction and development of the neural tube. Mutations in this gene have been associated with Orofaciodigital Syndrome IV and Joubert Syndrom 18. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Sep 2012]
TCTN3 Gene-Disease associations (from GenCC):
  • ciliopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • orofaciodigital syndrome IV
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet, Laboratory for Molecular Medicine
  • Joubert syndrome 18
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • Meckel syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • orofaciodigital syndrome type 6
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.115888774).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TCTN3NM_015631.6 linkc.193A>G p.Thr65Ala missense_variant Exon 1 of 14 ENST00000371217.10 NP_056446.4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TCTN3ENST00000371217.10 linkc.193A>G p.Thr65Ala missense_variant Exon 1 of 14 1 NM_015631.6 ENSP00000360261.5
TCTN3ENST00000265993.13 linkc.247A>G p.Thr83Ala missense_variant Exon 1 of 14 1 ENSP00000265993.9
TCTN3ENST00000430368.6 linkc.193A>G p.Thr65Ala missense_variant Exon 1 of 10 2 ENSP00000387567.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152094
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000642
AC:
1
AN:
155812
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000166
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000357
AC:
5
AN:
1399388
Hom.:
0
Cov.:
32
AF XY:
0.00000145
AC XY:
1
AN XY:
690200
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31598
American (AMR)
AF:
0.00
AC:
0
AN:
35702
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25176
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35738
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49268
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
0.00000463
AC:
5
AN:
1078972
Other (OTH)
AF:
0.00
AC:
0
AN:
58000
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152094
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74302
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41402
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
1763
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.060
BayesDel_addAF
Benign
-0.092
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
7.8
DANN
Benign
0.91
DEOGEN2
Benign
0.0074
T;T;.;.;.
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.0042
N
LIST_S2
Benign
0.54
T;.;T;T;T
M_CAP
Benign
0.065
D
MetaRNN
Benign
0.12
T;T;T;T;T
MetaSVM
Benign
-0.70
T
MutationAssessor
Benign
1.8
L;L;.;L;L
PhyloP100
-0.94
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-1.1
.;.;.;N;N
REVEL
Benign
0.26
Sift
Benign
0.038
.;.;.;D;D
Sift4G
Benign
0.44
T;T;T;T;T
Polyphen
0.45
B;B;.;.;P
Vest4
0.056
MutPred
0.24
Loss of glycosylation at T65 (P = 9e-04);Loss of glycosylation at T65 (P = 9e-04);.;Loss of glycosylation at T65 (P = 9e-04);Loss of glycosylation at T65 (P = 9e-04);
MVP
0.87
MPC
0.11
ClinPred
0.086
T
GERP RS
-4.3
PromoterAI
-0.052
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.12
gMVP
0.34
Mutation Taster
=91/9
polymorphism

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

Other links and lift over

dbSNP: rs11553577; hg19: chr10-97453464; API