11-44909759-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_130783.5(TSPAN18):​c.118G>A​(p.Gly40Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,613,566 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

TSPAN18
NM_130783.5 missense

Scores

1
8
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.95
Variant links:
Genes affected
TSPAN18 (HGNC:20660): (tetraspanin 18) Predicted to be integral component of membrane. Predicted to be integral component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]
TP53I11 (HGNC:16842): (tumor protein p53 inducible protein 11) Predicted to be involved in negative regulation of cell population proliferation. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSPAN18NM_130783.5 linkuse as main transcriptc.118G>A p.Gly40Ser missense_variant 5/10 ENST00000520358.7 NP_570139.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSPAN18ENST00000520358.7 linkuse as main transcriptc.118G>A p.Gly40Ser missense_variant 5/105 NM_130783.5 ENSP00000429993 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152204
Hom.:
0
Cov.:
33
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
250772
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135650
show subpopulations
Gnomad AFR exome
AF:
0.0000618
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461362
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
727004
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.0000566
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152204
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000372
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 06, 2022The c.118G>A (p.G40S) alteration is located in exon 4 (coding exon 2) of the TSPAN18 gene. This alteration results from a G to A substitution at nucleotide position 118, causing the glycine (G) at amino acid position 40 to be replaced by a serine (S). 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
Benign
0.16
BayesDel_addAF
Benign
0.0058
T
BayesDel_noAF
Uncertain
-0.050
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Benign
0.076
.;.;T;.;T;.
Eigen
Uncertain
0.40
Eigen_PC
Uncertain
0.50
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.90
D;D;D;D;.;D
M_CAP
Benign
0.058
D
MetaRNN
Uncertain
0.43
T;T;T;T;T;T
MetaSVM
Benign
-0.84
T
MutationAssessor
Benign
0.49
.;.;N;.;N;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.63
T
PROVEAN
Benign
-0.19
N;N;N;N;N;N
REVEL
Uncertain
0.37
Sift
Benign
0.52
T;T;T;T;T;T
Sift4G
Benign
0.68
T;T;T;T;T;T
Polyphen
1.0
.;.;D;.;D;.
Vest4
0.83, 0.83
MVP
0.64
MPC
0.81
ClinPred
0.27
T
GERP RS
5.0
Varity_R
0.26
gMVP
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs777649688; hg19: chr11-44931310; API