rs538591733

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2

The NM_012338.4(TSPAN12):​c.146C>T​(p.Thr49Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,609,816 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T49A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TSPAN12
NM_012338.4 missense

Scores

7
9
3

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:2

Conservation

PhyloP100: 7.68

Publications

7 publications found
Variant links:
Genes affected
TSPAN12 (HGNC:21641): (tetraspanin 12) The protein encoded by this gene is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. [provided by RefSeq, Jul 2008]
TSPAN12 Gene-Disease associations (from GenCC):
  • exudative vitreoretinopathy 5
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
  • TSPAN12-related vitreoretinopathy
    Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen
  • exudative vitreoretinopathy
    Inheritance: AD 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 -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.81
BS2
High AC in GnomAdExome4 at 5 AD,SD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TSPAN12NM_012338.4 linkc.146C>T p.Thr49Met missense_variant Exon 3 of 8 ENST00000222747.8 NP_036470.1 O95859-1A0A024R740
TSPAN12XM_005250239.4 linkc.146C>T p.Thr49Met missense_variant Exon 4 of 9 XP_005250296.1 O95859-1A0A024R740
TSPAN12XM_047420095.1 linkc.146C>T p.Thr49Met missense_variant Exon 4 of 9 XP_047276051.1
TSPAN12XM_047420096.1 linkc.146C>T p.Thr49Met missense_variant Exon 4 of 8 XP_047276052.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TSPAN12ENST00000222747.8 linkc.146C>T p.Thr49Met missense_variant Exon 3 of 8 1 NM_012338.4 ENSP00000222747.3 O95859-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152080
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00000399
AC:
1
AN:
250502
AF XY:
0.00000738
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:
0.00000884
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000343
AC:
5
AN:
1457736
Hom.:
0
Cov.:
29
AF XY:
0.00000414
AC XY:
3
AN XY:
725502
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33406
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26100
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39666
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86178
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53328
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000361
AC:
4
AN:
1108332
Other (OTH)
AF:
0.00
AC:
0
AN:
60242
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.405
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152080
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74286
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41420
American (AMR)
AF:
0.00
AC:
0
AN:
15250
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10590
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Exudative vitreoretinopathy 5 Pathogenic:1Uncertain:1
-
Juno Genomics, Hangzhou Juno Genomics, Inc
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PM2_Supporting+PS4_Supporting+PP4 -

May 14, 2012
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

not provided Uncertain:1
Nov 30, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt TSPAN12 protein function. This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 49 of the TSPAN12 protein (p.Thr49Met). This variant is present in population databases (rs538591733, gnomAD 0.0009%). This missense change has been observed in individuals with TSPAN12-related conditions (PMID: 21552475, 31987760; Invitae). ClinVar contains an entry for this variant (Variation ID: 126505). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.64
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.26
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.39
T;T;.;.;.;.
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.80
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
.;D;D;D;D;D
M_CAP
Uncertain
0.10
D
MetaRNN
Pathogenic
0.81
D;D;D;D;D;D
MetaSVM
Uncertain
-0.052
T
MutationAssessor
Uncertain
2.4
M;M;.;.;.;.
PhyloP100
7.7
PrimateAI
Uncertain
0.76
T
PROVEAN
Benign
-1.5
N;N;N;N;N;N
REVEL
Uncertain
0.42
Sift
Uncertain
0.0040
D;D;T;T;T;D
Sift4G
Uncertain
0.0060
D;D;.;T;.;D
Polyphen
1.0
D;D;.;.;.;.
Vest4
0.82
MutPred
0.68
Gain of methylation at R50 (P = 0.1319);Gain of methylation at R50 (P = 0.1319);Gain of methylation at R50 (P = 0.1319);Gain of methylation at R50 (P = 0.1319);Gain of methylation at R50 (P = 0.1319);Gain of methylation at R50 (P = 0.1319);
MVP
0.79
MPC
0.56
ClinPred
0.84
D
GERP RS
5.7
Varity_R
0.36
gMVP
0.72
Mutation Taster
=9/91
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
Splicevardb
2.0
SpliceAI score (max)
0.030
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: rs538591733; hg19: chr7-120480084; API