X-100636622-T-C

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_003270.4(TSPAN6):​c.73A>G​(p.Thr25Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000358 in 1,202,007 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 13 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000036 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 0.000036 ( 0 hom. 13 hem. )

Consequence

TSPAN6
NM_003270.4 missense

Scores

4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.61

Publications

0 publications found
Variant links:
Genes affected
TSPAN6 (HGNC:11858): (tetraspanin 6) 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. The protein encoded by this gene is a cell surface glycoprotein and is highly similar in sequence to the transmembrane 4 superfamily member 2 protein. It functions as a negative regulator of retinoic acid-inducible gene I-like receptor-mediated immune signaling via its interaction with the mitochondrial antiviral signaling-centered signalosome. This gene uses alternative polyadenylation sites, and multiple transcript variants result from alternative splicing. [provided by RefSeq, Jul 2013]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.31015116).
BS2
High Hemizygotes in GnomAdExome4 at 13 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TSPAN6NM_003270.4 linkc.73A>G p.Thr25Ala missense_variant Exon 1 of 8 ENST00000373020.9 NP_003261.1 O43657

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TSPAN6ENST00000373020.9 linkc.73A>G p.Thr25Ala missense_variant Exon 1 of 8 1 NM_003270.4 ENSP00000362111.4 O43657
TSPAN6ENST00000496771.5 linkn.68A>G non_coding_transcript_exon_variant Exon 1 of 6 3
TSPAN6ENST00000612152.4 linkc.-178+171A>G intron_variant Intron 1 of 6 5 ENSP00000482130.1 A0A087WYV6
TSPAN6ENST00000494424.1 linkn.359+171A>G intron_variant Intron 2 of 5 2

Frequencies

GnomAD3 genomes
AF:
0.0000361
AC:
4
AN:
110920
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.0000328
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:
0.0000568
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000236
AC:
4
AN:
169632
AF XY:
0.0000181
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:
0.0000528
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000357
AC:
39
AN:
1091087
Hom.:
0
Cov.:
30
AF XY:
0.0000364
AC XY:
13
AN XY:
357305
show subpopulations
African (AFR)
AF:
0.0000382
AC:
1
AN:
26167
American (AMR)
AF:
0.0000290
AC:
1
AN:
34523
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19240
East Asian (EAS)
AF:
0.00
AC:
0
AN:
29779
South Asian (SAS)
AF:
0.00
AC:
0
AN:
52372
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40289
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4118
European-Non Finnish (NFE)
AF:
0.0000393
AC:
33
AN:
838757
Other (OTH)
AF:
0.0000873
AC:
4
AN:
45842
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.0000361
AC:
4
AN:
110920
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33264
show subpopulations
African (AFR)
AF:
0.0000328
AC:
1
AN:
30467
American (AMR)
AF:
0.00
AC:
0
AN:
10544
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2638
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3517
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2546
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5971
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
237
European-Non Finnish (NFE)
AF:
0.0000568
AC:
3
AN:
52832
Other (OTH)
AF:
0.00
AC:
0
AN:
1494
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
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:
0.0000434
Hom.:
0
Bravo
AF:
0.0000151
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000346
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000149
AC:
1
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Aug 28, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.73A>G (p.T25A) alteration is located in exon 1 (coding exon 1) of the TSPAN6 gene. This alteration results from a A to G substitution at nucleotide position 73, causing the threonine (T) at amino acid position 25 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.38
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
23
DANN
Benign
0.96
DEOGEN2
Benign
0.14
T
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Benign
0.72
T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.31
T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
1.4
L
PhyloP100
6.6
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.23
Sift
Benign
0.053
T
Sift4G
Benign
0.29
T
Polyphen
0.099
B
Vest4
0.46
MVP
0.77
MPC
0.054
ClinPred
0.19
T
GERP RS
2.9
PromoterAI
0.10
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.30
gMVP
0.47
Mutation Taster
=59/41
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: rs374960389; hg19: chrX-99891619; API