2-181534370-T-C

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP7BA1

The NM_000885.6(ITGA4):ā€‹c.2883T>Cā€‹(p.His961=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.589 in 1,522,244 control chromosomes in the GnomAD database, including 268,253 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: š‘“ 0.60 ( 27810 hom., cov: 31)
Exomes š‘“: 0.59 ( 240443 hom. )

Consequence

ITGA4
NM_000885.6 splice_region, synonymous

Scores

2
Splicing: ADA: 0.0007010
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.518
Variant links:
Genes affected
ITGA4 (HGNC:6140): (integrin subunit alpha 4) The gene encodes a member of the integrin alpha chain family of proteins. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain that function in cell surface adhesion and signaling. The encoded preproprotein is proteolytically processed to generate light and heavy chains that comprise the alpha 4 subunit. This subunit associates with a beta 1 or beta 7 subunit to form an integrin that may play a role in cell motility and migration. This integrin is a therapeutic target for the treatment of multiple sclerosis, Crohn's disease and inflammatory bowel disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).
BP7
Synonymous conserved (PhyloP=-0.518 with no splicing effect.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.809 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ITGA4NM_000885.6 linkuse as main transcriptc.2883T>C p.His961= splice_region_variant, synonymous_variant 26/28 ENST00000397033.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ITGA4ENST00000397033.7 linkuse as main transcriptc.2883T>C p.His961= splice_region_variant, synonymous_variant 26/281 NM_000885.6 P1P13612-1

Frequencies

GnomAD3 genomes
AF:
0.602
AC:
91404
AN:
151852
Hom.:
27797
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.635
Gnomad AMI
AF:
0.384
Gnomad AMR
AF:
0.616
Gnomad ASJ
AF:
0.609
Gnomad EAS
AF:
0.632
Gnomad SAS
AF:
0.831
Gnomad FIN
AF:
0.507
Gnomad MID
AF:
0.684
Gnomad NFE
AF:
0.576
Gnomad OTH
AF:
0.624
GnomAD3 exomes
AF:
0.614
AC:
151532
AN:
246678
Hom.:
47667
AF XY:
0.625
AC XY:
83721
AN XY:
133858
show subpopulations
Gnomad AFR exome
AF:
0.630
Gnomad AMR exome
AF:
0.604
Gnomad ASJ exome
AF:
0.603
Gnomad EAS exome
AF:
0.636
Gnomad SAS exome
AF:
0.835
Gnomad FIN exome
AF:
0.486
Gnomad NFE exome
AF:
0.578
Gnomad OTH exome
AF:
0.610
GnomAD4 exome
AF:
0.587
AC:
804468
AN:
1370274
Hom.:
240443
Cov.:
22
AF XY:
0.597
AC XY:
410117
AN XY:
687016
show subpopulations
Gnomad4 AFR exome
AF:
0.635
Gnomad4 AMR exome
AF:
0.606
Gnomad4 ASJ exome
AF:
0.610
Gnomad4 EAS exome
AF:
0.618
Gnomad4 SAS exome
AF:
0.837
Gnomad4 FIN exome
AF:
0.490
Gnomad4 NFE exome
AF:
0.566
Gnomad4 OTH exome
AF:
0.596
GnomAD4 genome
AF:
0.602
AC:
91470
AN:
151970
Hom.:
27810
Cov.:
31
AF XY:
0.604
AC XY:
44855
AN XY:
74282
show subpopulations
Gnomad4 AFR
AF:
0.635
Gnomad4 AMR
AF:
0.617
Gnomad4 ASJ
AF:
0.609
Gnomad4 EAS
AF:
0.633
Gnomad4 SAS
AF:
0.831
Gnomad4 FIN
AF:
0.507
Gnomad4 NFE
AF:
0.576
Gnomad4 OTH
AF:
0.620
Alfa
AF:
0.586
Hom.:
52682
Bravo
AF:
0.606
Asia WGS
AF:
0.680
AC:
2363
AN:
3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
CADD
Benign
0.42
DANN
Benign
0.77

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00070
dbscSNV1_RF
Benign
0.058
SpliceAI score (max)
0.0
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: rs7562325; hg19: chr2-182399097; COSMIC: COSV59207843; COSMIC: COSV59207843; API