11-2377572-A-G

Variant names:

Variant summary

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

The NM_004356.4(CD81):c.23A>G(p.Lys8Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000526 in 1,519,556 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000044 ( 0 hom. )

Consequence

CD81
NM_004356.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.74

Variant links:

Genes affected

CD81 (HGNC:1701): (CD81 molecule) 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 that is known to complex with integrins. This protein appears to promote muscle cell fusion and support myotube maintenance. Also it may be involved in signal transduction. This gene is localized in the tumor-suppressor gene region and thus it is a candidate gene for malignancies. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2014]

CD81 links:

CD81-AS1 (HGNC:49384): (CD81 antisense RNA 1)

CD81-AS1 links:

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=0.35356534).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CD81	NM_004356.4 link	c.23A>G	p.Lys8Arg	missense_variant	Exon 1 of 8	ENST00000263645.10	NP_004347.1	P60033A0A024RCB7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CD81	ENST00000263645.10 link	c.23A>G	p.Lys8Arg	missense_variant	Exon 1 of 8	1	NM_004356.4	ENSP00000263645.5		P60033

Frequencies

GnomAD3 genomes

AF:

0.0000133

AC:

AN:

149954

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000488

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

GnomAD3 exomes

AF:

0.00000536

AC:

AN:

186498

Hom.:

AF XY:

0.00

AC XY:

AN XY:

102078

show subpopulations

Gnomad AFR exome

AF:

0.000113

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000438

AC:

AN:

1369602

Hom.:

Cov.:

AF XY:

0.00000442

AC XY:

AN XY:

679194

show subpopulations

Gnomad4 AFR exome

AF:

0.000106

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:

0.00000282

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000133

AC:

AN:

149954

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73240

show subpopulations

Gnomad4 AFR

AF:

0.0000488

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000842

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jan 19, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces lysine, which is basic and polar, with arginine, which is basic and polar, at codon 8 of the CD81 protein (p.Lys8Arg). This variant is present in population databases (rs761080989, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with CD81-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.23

Eigen

Benign

-0.081

Eigen_PC

Benign

-0.18

FATHMM_MKL

Uncertain

0.78

LIST_S2

Uncertain

0.91

M_CAP

Pathogenic

0.41

MetaRNN

Benign

0.35

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.4

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-2.3

REVEL

Benign

0.17

Sift

Benign

0.30

Sift4G

Benign

0.22

Polyphen

0.89

Vest4

0.16

MutPred

0.56

Loss of methylation at K8 (P = 0.0047);

MVP

0.77

MPC

0.51

ClinPred

0.25

GERP RS

-0.075

Varity_R

0.13

gMVP

0.17

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.

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