rs796052142

Variant summary

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

The NM_015631.6(TCTN3):​c.152C>T​(p.Ser51Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000858 in 1,399,368 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. Synonymous variant affecting the same amino acid position (i.e. S51S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000086 ( 0 hom. )

Consequence

TCTN3
NM_015631.6 missense

Scores

18

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.36

Publications

1 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=0.10284823).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015631.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TCTN3
NM_015631.6
MANE Select
c.152C>Tp.Ser51Leu
missense
Exon 1 of 14NP_056446.4
TCTN3
NM_001410982.1
c.152C>Tp.Ser51Leu
missense
Exon 1 of 13NP_001397911.1
TCTN3
NM_001143973.2
c.152C>Tp.Ser51Leu
missense
Exon 1 of 10NP_001137445.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TCTN3
ENST00000371217.10
TSL:1 MANE Select
c.152C>Tp.Ser51Leu
missense
Exon 1 of 14ENSP00000360261.5
TCTN3
ENST00000265993.13
TSL:1
c.206C>Tp.Ser69Leu
missense
Exon 1 of 14ENSP00000265993.9
TCTN3
ENST00000614499.5
TSL:1
c.206C>Tp.Ser69Leu
missense
Exon 1 of 14ENSP00000483364.2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000858
AC:
12
AN:
1399368
Hom.:
0
Cov.:
32
AF XY:
0.00000869
AC XY:
6
AN XY:
690190
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:
25180
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:
49242
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
0.0000111
AC:
12
AN:
1078972
Other (OTH)
AF:
0.00
AC:
0
AN:
58000
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
1
2
3
4
5
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
Cov.:
32
Alfa
AF:
0.0000312
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_addAF
Benign
-0.024
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
14
DANN
Benign
0.84
DEOGEN2
Benign
0.0078
T
Eigen
Benign
-0.78
Eigen_PC
Benign
-0.77
FATHMM_MKL
Benign
0.014
N
LIST_S2
Benign
0.75
T
M_CAP
Benign
0.056
D
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-0.71
T
MutationAssessor
Benign
1.4
L
PhyloP100
1.4
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-1.5
N
REVEL
Benign
0.22
Sift
Benign
0.15
T
Sift4G
Benign
0.19
T
Polyphen
0.0020
B
Vest4
0.076
MutPred
0.11
Loss of glycosylation at S51 (P = 0.0105)
MVP
0.86
MPC
0.098
ClinPred
0.12
T
GERP RS
3.6
PromoterAI
0.0057
Neutral
Varity_R
0.097
gMVP
0.41
Mutation Taster
=92/8
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: rs796052142; hg19: chr10-97453505; API