chr7-20401814-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_002214.3(ITGB8):​c.1375G>A​(p.Ala459Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000645 in 1,612,978 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

ITGB8
NM_002214.3 missense

Scores

1
18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.00
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.03598872).
BP6
Variant 7-20401814-G-A is Benign according to our data. Variant chr7-20401814-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2206751.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 100 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ITGB8NM_002214.3 linkuse as main transcriptc.1375G>A p.Ala459Thr missense_variant 10/14 ENST00000222573.5 NP_002205.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ITGB8ENST00000222573.5 linkuse as main transcriptc.1375G>A p.Ala459Thr missense_variant 10/141 NM_002214.3 ENSP00000222573 P1P26012-1
ITGB8ENST00000537992.5 linkuse as main transcriptc.970G>A p.Ala324Thr missense_variant 11/152 ENSP00000441561 P26012-2

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152162
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000919
AC:
23
AN:
250192
Hom.:
0
AF XY:
0.000104
AC XY:
14
AN XY:
135148
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000708
Gnomad SAS exome
AF:
0.0000332
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000794
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000685
AC:
100
AN:
1460816
Hom.:
0
Cov.:
31
AF XY:
0.0000619
AC XY:
45
AN XY:
726612
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000227
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000738
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152162
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74322
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000847
Hom.:
0
Bravo
AF:
0.0000340
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000107
AC:
13
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsJul 21, 2021This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.064
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
17
DANN
Benign
0.90
DEOGEN2
Uncertain
0.43
.;T
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.23
FATHMM_MKL
Benign
0.27
N
LIST_S2
Benign
0.60
T;T
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.036
T;T
MetaSVM
Benign
-0.49
T
MutationAssessor
Benign
-0.44
.;N
MutationTaster
Benign
0.97
N;N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
0.80
N;N
REVEL
Benign
0.21
Sift
Benign
0.29
T;T
Sift4G
Benign
0.54
T;T
Polyphen
0.0
.;B
Vest4
0.20
MVP
0.18
MPC
0.14
ClinPred
0.044
T
GERP RS
4.8
Varity_R
0.12
gMVP
0.56

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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.

Other links and lift over

dbSNP: rs150701020; hg19: chr7-20441437; COSMIC: COSV56009549; COSMIC: COSV56009549; API