Variant 7-20401796-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002214.3(ITGB8):c.1357A>G(p.Ile453Val) variant causes a missense change. The variant allele was found at a frequency of 0.000234 in 1,611,602 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00024 ( 0 hom. )

Consequence

ITGB8
NM_002214.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.77

Variant links:

Genes affected

ITGB8 (HGNC:6163): (integrin subunit beta 8) This gene is a member of the integrin beta chain family and encodes a single-pass type I membrane protein with a VWFA domain and four cysteine-rich repeats. This protein noncovalently binds to an alpha subunit to form a heterodimeric integrin complex. In general, integrin complexes mediate cell-cell and cell-extracellular matrix interactions and this complex plays a role in human airway epithelial proliferation. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]

ITGB8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.10654953).

BS2

High AC in GnomAd4 at 25 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ITGB8	NM_002214.3 linkuse as main transcript	c.1357A>G	p.Ile453Val	missense_variant	10/14	ENST00000222573.5	NP_002205.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ITGB8	ENST00000222573.5 linkuse as main transcript	c.1357A>G	p.Ile453Val	missense_variant	10/14	1	NM_002214.3	ENSP00000222573	P1	P26012-1
ITGB8	ENST00000537992.5 linkuse as main transcript	c.952A>G	p.Ile318Val	missense_variant	11/15	2		ENSP00000441561		P26012-2

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.000250

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000125

AC:

AN:

248822

Hom.:

AF XY:

0.000127

AC XY:

AN XY:

134310

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.0000882

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000202

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000186

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000241

AC:

352

AN:

1459364

Hom.:

Cov.:

AF XY:

0.000233

AC XY:

169

AN XY:

725758

show subpopulations

Gnomad4 AFR exome

AF:

0.0000300

Gnomad4 AMR exome

AF:

0.0000905

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000164

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000280

Gnomad4 OTH exome

AF:

0.000365

GnomAD4 genome

AF:

0.000164

AC:

AN:

152238

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.0000965

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000250

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000280

Hom.:

Bravo

AF:

0.000204

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.0000906

AC:

EpiCase

AF:

0.000382

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 submitter

clinical testing

Ambry Genetics

Sep 29, 2023

The c.1357A>G (p.I453V) alteration is located in exon 10 (coding exon 10) of the ITGB8 gene. This alteration results from a A to G substitution at nucleotide position 1357, causing the isoleucine (I) at amino acid position 453 to be replaced by a valine (V). 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

0.059

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Benign

0.66

DEOGEN2

Benign

0.39

.;T

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.12

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.81

T;T

M_CAP

Benign

0.0060

MetaRNN

Benign

0.11

T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

-0.35

.;N

MutationTaster

Benign

0.69

D;D

PrimateAI

Benign

0.32

PROVEAN

Benign

0.24

N;N

REVEL

Benign

0.073

Sift

Benign

1.0

T;T

Sift4G

Benign

1.0

T;T

Polyphen

0.074

.;B

Vest4

0.21

MVP

0.27

MPC

0.21

ClinPred

0.087

GERP RS

6.0

Varity_R

0.12

gMVP

0.40

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

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