chr3-37508581-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002207.3(ITGA9):​c.851G>A​(p.Arg284Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,613,046 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

ITGA9
NM_002207.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.43
Variant links:
Genes affected
ITGA9 (HGNC:6145): (integrin subunit alpha 9) This gene encodes an alpha integrin. Integrins are heterodimeric integral membrane glycoproteins composed of an alpha chain and a beta chain that mediate cell-cell and cell-matrix adhesion. The protein encoded by this gene, when bound to the beta 1 chain, forms an integrin that is a receptor for VCAM1, cytotactin and osteopontin. Expression of this gene has been found to be upregulated in small cell lung cancers. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07985604).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ITGA9NM_002207.3 linkuse as main transcriptc.851G>A p.Arg284Gln missense_variant 8/28 ENST00000264741.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ITGA9ENST00000264741.10 linkuse as main transcriptc.851G>A p.Arg284Gln missense_variant 8/281 NM_002207.3 P1
ITGA9ENST00000422441.5 linkuse as main transcriptc.851G>A p.Arg284Gln missense_variant 8/161

Frequencies

GnomAD3 genomes
AF:
0.0000462
AC:
7
AN:
151650
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000728
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000147
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251046
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135668
show subpopulations
Gnomad AFR exome
AF:
0.0000616
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:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000151
AC:
22
AN:
1461278
Hom.:
0
Cov.:
31
AF XY:
0.0000151
AC XY:
11
AN XY:
726958
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000461
AC:
7
AN:
151768
Hom.:
0
Cov.:
32
AF XY:
0.0000270
AC XY:
2
AN XY:
74134
show subpopulations
Gnomad4 AFR
AF:
0.0000726
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.0000508
Hom.:
0
Bravo
AF:
0.000102
ExAC
AF:
0.0000247
AC:
3

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 submitterclinical testingAmbry GeneticsJul 19, 2023The c.851G>A (p.R284Q) alteration is located in exon 8 (coding exon 8) of the ITGA9 gene. This alteration results from a G to A substitution at nucleotide position 851, causing the arginine (R) at amino acid position 284 to be replaced by a glutamine (Q). 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
0.079
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0031
T;T
Eigen
Benign
-0.21
Eigen_PC
Benign
-0.065
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Benign
0.80
T;T
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.080
T;T
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
0.79
.;N
MutationTaster
Benign
0.75
D;N
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-0.090
N;N
REVEL
Benign
0.13
Sift
Benign
0.30
T;T
Sift4G
Benign
0.52
T;T
Polyphen
0.91
P;B
Vest4
0.15
MVP
0.32
MPC
0.23
ClinPred
0.17
T
GERP RS
3.7
Varity_R
0.063
gMVP
0.66

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs547761591; hg19: chr3-37550072; COSMIC: COSV53248893; API