10-95693689-C-T

Variant summary

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

The NM_015631.6(TCTN3):​c.211G>A​(p.Val71Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000322 in 1,551,564 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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. V71L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TCTN3
NM_015631.6 missense

Scores

3
16

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0140

Publications

2 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=0.18262276).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TCTN3NM_015631.6 linkc.211G>A p.Val71Met missense_variant Exon 1 of 14 ENST00000371217.10 NP_056446.4 Q6NUS6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TCTN3ENST00000371217.10 linkc.211G>A p.Val71Met missense_variant Exon 1 of 14 1 NM_015631.6 ENSP00000360261.5 Q6NUS6-1
TCTN3ENST00000265993.13 linkc.265G>A p.Val89Met missense_variant Exon 1 of 14 1 ENSP00000265993.9 A0A0C4DFN5
TCTN3ENST00000430368.6 linkc.211G>A p.Val71Met missense_variant Exon 1 of 10 2 ENSP00000387567.1 Q6NUS6-5

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152168
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000641
AC:
1
AN:
155994
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:
0.00000214
AC:
3
AN:
1399396
Hom.:
0
Cov.:
32
AF XY:
0.00000145
AC XY:
1
AN XY:
690198
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31598
American (AMR)
AF:
0.00
AC:
0
AN:
35704
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25172
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:
49278
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
0.00000278
AC:
3
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
0
1
1
2
2
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:
0.0000131
AC:
2
AN:
152168
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74336
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41436
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68040
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00
Hom.:
0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.075
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.018
T;T;.;.;.
Eigen
Benign
-0.37
Eigen_PC
Benign
-0.50
FATHMM_MKL
Benign
0.0070
N
LIST_S2
Benign
0.83
T;.;T;T;T
M_CAP
Uncertain
0.16
D
MetaRNN
Benign
0.18
T;T;T;T;T
MetaSVM
Benign
-0.60
T
MutationAssessor
Benign
1.8
L;L;.;L;L
PhyloP100
-0.014
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.25
.;.;.;N;N
REVEL
Uncertain
0.32
Sift
Benign
0.069
.;.;.;T;T
Sift4G
Benign
0.13
T;T;T;T;T
Polyphen
1.0
D;D;.;.;D
Vest4
0.11
MutPred
0.23
Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);.;Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);
MVP
0.87
MPC
0.32
ClinPred
0.45
T
GERP RS
2.1
PromoterAI
-0.094
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.042
gMVP
0.24
Mutation Taster
=97/3
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: rs138495428; hg19: chr10-97453446; API