NM_003270.4:c.704G>A

Variant names:

Variant summary

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

The NM_003270.4(TSPAN6):c.704G>A(p.Arg235His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,208,113 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000045 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 0.0000082 ( 0 hom. 3 hem. )

Consequence

TSPAN6
NM_003270.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.69

Publications

1 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]

TSPAN6 links:

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=0.27651456).

BS2

High Hemizygotes in GnomAdExome4 at 3 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TSPAN6	NM_003270.4 link	c.704G>A	p.Arg235His	missense_variant	Exon 7 of 8	ENST00000373020.9	NP_003261.1	O43657

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TSPAN6	ENST00000373020.9 link	c.704G>A	p.Arg235His	missense_variant	Exon 7 of 8	1	NM_003270.4	ENSP00000362111.4		O43657
TSPAN6	ENST00000612152.4 link	c.356G>A	p.Arg119His	missense_variant	Exon 6 of 7	5		ENSP00000482130.1		A0A087WYV6

Frequencies

GnomAD3 genomes

AF:

0.0000448

AC:

AN:

111701

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000163

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:

0.00000549

AC:

AN:

182244

AF XY:

0.00

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:

0.0000123

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000821

AC:

AN:

1096360

Hom.:

Cov.:

AF XY:

0.00000829

AC XY:

AN XY:

361788

show subpopulations

African (AFR)

AF:

0.000152

AC:

AN:

26376

American (AMR)

AF:

0.00

AC:

AN:

35190

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19365

East Asian (EAS)

AF:

0.00

AC:

AN:

30180

South Asian (SAS)

AF:

0.00

AC:

AN:

53986

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40511

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4134

European-Non Finnish (NFE)

AF:

0.00000238

AC:

AN:

840594

Other (OTH)

AF:

0.0000652

AC:

AN:

46024

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000447

AC:

AN:

111753

Hom.:

Cov.:

AF XY:

0.0000294

AC XY:

AN XY:

33975

show subpopulations

African (AFR)

AF:

0.000162

AC:

AN:

30808

American (AMR)

AF:

0.00

AC:

AN:

10502

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2647

East Asian (EAS)

AF:

0.00

AC:

AN:

3556

South Asian (SAS)

AF:

0.00

AC:

AN:

2669

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6002

Middle Eastern (MID)

AF:

0.00

AC:

AN:

218

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53150

Other (OTH)

AF:

0.00

AC:

AN:

1518

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.588

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 09, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.704G>A (p.R235H) alteration is located in exon 7 (coding exon 7) of the TSPAN6 gene. This alteration results from a G to A substitution at nucleotide position 704, causing the arginine (R) at amino acid position 235 to be replaced by a histidine (H). 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

0.18

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.41

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

.;T

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.82

T;D

M_CAP

Benign

0.054

MetaRNN

Benign

0.28

T;T

MetaSVM

Benign

-0.47

MutationAssessor

Uncertain

2.7

.;M

PhyloP100

1.7

PrimateAI

Benign

0.39

PROVEAN

Uncertain

-2.5

.;N

REVEL

Uncertain

0.30

Sift

Benign

0.074

.;T

Sift4G

Uncertain

0.010

D;D

Polyphen

0.067

.;B

Vest4

0.26

MutPred

0.74

.;Gain of glycosylation at T238 (P = 0.0516);

MVP

0.78

MPC

0.067

ClinPred

0.71

GERP RS

3.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.20

gMVP

0.80

Mutation Taster

=95/5

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

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NM_003270.4:c.704G>A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over