Variant 1-115062170-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_005725.6(TSPAN2):c.235G>C(p.Gly79Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

TSPAN2
NM_005725.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.40

Variant links:

Genes affected

TSPAN2 (HGNC:20659): (tetraspanin 2) 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. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Apr 2015]

TSPAN2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.988

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TSPAN2	NM_005725.6 linkuse as main transcript	c.235G>C	p.Gly79Arg	missense_variant	3/8	ENST00000369516.7	NP_005716.2	O60636-1B2RD31
TSPAN2	NM_001308315.2 linkuse as main transcript	c.235G>C	p.Gly79Arg	missense_variant	3/7		NP_001295244.1	B1AKP1
TSPAN2	NM_001308316.2 linkuse as main transcript	c.235G>C	p.Gly79Arg	missense_variant	3/7		NP_001295245.1	O60636-2
TSPAN2	XM_016999996.2 linkuse as main transcript	c.235G>C	p.Gly79Arg	missense_variant	3/6		XP_016855485.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
TSPAN2	ENST00000369516.7 linkuse as main transcript	c.235G>C	p.Gly79Arg	missense_variant	3/8	1	NM_005725.6	ENSP00000358529.2	O60636-1
TSPAN2	ENST00000433172.3 linkuse as main transcript	c.217G>C	p.Gly73Arg	missense_variant	3/7	1		ENSP00000415256.1	B1AKP2
TSPAN2	ENST00000369515.6 linkuse as main transcript	c.235G>C	p.Gly79Arg	missense_variant	3/7	3		ENSP00000358528.2	B1AKP1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000436

AC:

AN:

229384

Hom.:

AF XY:

0.00

AC XY:

AN XY:

123470

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000972

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1449674

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

719698

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.:

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 submitter

clinical testing

Ambry Genetics

Oct 11, 2024

The c.235G>C (p.G79R) alteration is located in exon 3 (coding exon 3) of the TSPAN2 gene. This alteration results from a G to C substitution at nucleotide position 235, causing the glycine (G) at amino acid position 79 to be replaced by an arginine (R). 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

Pathogenic

0.96

BayesDel_addAF

Pathogenic

0.46

BayesDel_noAF

Pathogenic

0.42

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.79

D;.;.

Eigen

Pathogenic

0.93

Eigen_PC

Pathogenic

0.86

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Pathogenic

0.99

D;D;D

M_CAP

Uncertain

0.13

MetaRNN

Pathogenic

0.99

D;D;D

MetaSVM

Pathogenic

0.83

MutationAssessor

Pathogenic

3.6

H;.;.

PrimateAI

Uncertain

0.65

PROVEAN

Pathogenic

-7.6

D;D;D

REVEL

Pathogenic

0.90

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0010

D;D;D

Polyphen

1.0

D;.;.

Vest4

0.92

MutPred

0.96

Loss of catalytic residue at F75 (P = 0.1258);Loss of catalytic residue at F75 (P = 0.1258);.;

MVP

0.87

MPC

0.56

ClinPred

1.0

GERP RS

5.6

Varity_R

0.97

gMVP

0.97

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

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over