X-38674315-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_004615.4(TSPAN7):​c.440G>A​(p.Ser147Asn) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.0 ( 0 hom. 0 hem. )
Failed GnomAD Quality Control

Consequence

TSPAN7
NM_004615.4 missense, splice_region

Scores

1
3
13
Splicing: ADA: 0.9498
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.63
Variant links:
Genes affected
TSPAN7 (HGNC:11854): (tetraspanin 7) 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. This encoded protein is a cell surface glycoprotein and may have a role in the control of neurite outgrowth. It is known to complex with integrins. This gene is associated with X-linked cognitive disability and neuropsychiatric diseases such as Huntington's chorea, fragile X syndrome and myotonic dystrophy. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.4110536).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSPAN7NM_004615.4 linkuse as main transcriptc.440G>A p.Ser147Asn missense_variant, splice_region_variant 4/8 ENST00000378482.7 NP_004606.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSPAN7ENST00000378482.7 linkuse as main transcriptc.440G>A p.Ser147Asn missense_variant, splice_region_variant 4/81 NM_004615.4 ENSP00000367743 P1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1071522
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
345778
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJun 24, 2022Variants in candidate genes are classified as variants of uncertain significance in accordance with ACMG guidelines (Richards et al., 2015); Not observed in large population cohorts (gnomAD); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.028
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.17
.;T;.
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.75
T;T;T
M_CAP
Pathogenic
0.70
D
MetaRNN
Benign
0.41
T;T;T
MetaSVM
Benign
-0.55
T
MutationAssessor
Benign
1.3
.;L;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Benign
-1.1
N;N;N
REVEL
Benign
0.28
Sift
Benign
0.19
T;T;T
Sift4G
Benign
0.35
T;T;T
Polyphen
0.0030, 0.0050
.;B;B
Vest4
0.29
MVP
0.42
MPC
0.56
ClinPred
0.60
D
GERP RS
5.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.58
gMVP
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.95
dbscSNV1_RF
Benign
0.55
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

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-38533569; API