rs773061089

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The ENST00000397656.8(TCTN1):​n.-19C>A variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000123 in 1,548,290 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

TCTN1
ENST00000397656.8 non_coding_transcript_exon

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.521

Publications

0 publications found
Variant links:
Genes affected
TCTN1 (HGNC:26113): (tectonic family member 1) This gene encodes a member of a family of secreted and transmembrane proteins. The orthologous gene in mouse functions downstream of smoothened and rab23 to modulate hedgehog signal transduction. This protein is a component of the tectonic-like complex, which forms a barrier between the ciliary axoneme and the basal body. A mutation in this gene was found in a family with Joubert syndrome-13. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]
TCTN1 Gene-Disease associations (from GenCC):
  • Joubert syndrome 13
    Inheritance: AR Classification: STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • Joubert syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Meckel syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 12-110614164-C-A is Benign according to our data. Variant chr12-110614164-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 257396.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TCTN1NM_001082538.3 linkc.-19C>A 5_prime_UTR_variant Exon 1 of 15 ENST00000397659.9 NP_001076007.1 Q2MV58-2B4DIB9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TCTN1ENST00000397656.8 linkn.-19C>A non_coding_transcript_exon_variant Exon 1 of 16 2 ENSP00000380776.4 J3KPW2
TCTN1ENST00000495659.6 linkn.-19C>A non_coding_transcript_exon_variant Exon 1 of 15 2 ENSP00000436673.2 E9PIB8
TCTN1ENST00000397659.9 linkc.-19C>A 5_prime_UTR_variant Exon 1 of 15 1 NM_001082538.3 ENSP00000380779.4 Q2MV58-2
TCTN1ENST00000551590.5 linkc.-19C>A 5_prime_UTR_variant Exon 1 of 15 1 ENSP00000448735.1 Q2MV58-1
TCTN1ENST00000397655.7 linkc.-19C>A 5_prime_UTR_variant Exon 1 of 15 1 ENSP00000380775.3 Q2MV58-3
TCTN1ENST00000397656.8 linkn.-19C>A 5_prime_UTR_variant Exon 1 of 16 2 ENSP00000380776.4 J3KPW2
TCTN1ENST00000495659.6 linkn.-19C>A 5_prime_UTR_variant Exon 1 of 15 2 ENSP00000436673.2 E9PIB8
TCTN1ENST00000480648.5 linkn.-19C>A upstream_gene_variant 5 ENSP00000437196.1 E9PNE4

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152254
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
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
GnomAD2 exomes
AF:
0.0000486
AC:
7
AN:
144132
AF XY:
0.0000639
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000815
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000902
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000189
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000115
AC:
16
AN:
1395918
Hom.:
0
Cov.:
31
AF XY:
0.0000131
AC XY:
9
AN XY:
688652
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31862
American (AMR)
AF:
0.0000559
AC:
2
AN:
35772
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25154
East Asian (EAS)
AF:
0.0000276
AC:
1
AN:
36254
South Asian (SAS)
AF:
0.0000505
AC:
4
AN:
79264
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
46194
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4110
European-Non Finnish (NFE)
AF:
0.00000648
AC:
7
AN:
1079462
Other (OTH)
AF:
0.0000346
AC:
2
AN:
57846
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
2
4
6
8
10
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:
0.0000197
AC:
3
AN:
152372
Hom.:
0
Cov.:
32
AF XY:
0.0000268
AC XY:
2
AN XY:
74520
show subpopulations
African (AFR)
AF:
0.0000721
AC:
3
AN:
41588
American (AMR)
AF:
0.00
AC:
0
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000434
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.76
CADD
Benign
5.7
DANN
Benign
0.45
PhyloP100
-0.52
PromoterAI
0.066
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

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: rs773061089; hg19: chr12-111051969; API