5-52788402-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_181501.2(ITGA1):c.49T>C(p.Trp17Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000205 in 1,513,630 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 1 hom., cov: 34)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

ITGA1
NM_181501.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.44

Variant links:

Genes affected

ITGA1 (HGNC:6134): (integrin subunit alpha 1) This gene encodes the alpha 1 subunit of integrin receptors. This protein heterodimerizes with the beta 1 subunit to form a cell-surface receptor for collagen and laminin. The heterodimeric receptor is involved in cell-cell adhesion and may play a role in inflammation and fibrosis. The alpha 1 subunit contains an inserted (I) von Willebrand factor type I domain which is thought to be involved in collagen binding. [provided by RefSeq, Jul 2008]

ITGA1 links:

PELO (HGNC:8829): (pelota mRNA surveillance and ribosome rescue factor) This gene encodes a protein which contains a conserved nuclear localization signal. The encoded protein may have a role in spermatogenesis, cell cycle control, and in meiotic cell division. [provided by RefSeq, Jul 2008]

PELO links:

PELO-AS1 (HGNC:56263): (PELO antisense RNA 1)

PELO-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.78

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ITGA1	NM_181501.2 linkuse as main transcript	c.49T>C	p.Trp17Arg	missense_variant	1/29	ENST00000282588.7
PELO	NM_015946.5 linkuse as main transcript	c.-523T>C		5_prime_UTR_variant	1/3	ENST00000274311.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
ITGA1	ENST00000282588.7 linkuse as main transcript	c.49T>C	p.Trp17Arg	missense_variant	1/29	1	NM_181501.2	P1
PELO	ENST00000274311.3 linkuse as main transcript	c.-523T>C		5_prime_UTR_variant	1/3	1	NM_015946.5	P1
PELO-AS1	ENST00000670789.1 linkuse as main transcript	n.153-2810A>G		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000191

AC:

AN:

1361406

Hom.:

Cov.:

AF XY:

0.0000238

AC XY:

AN XY:

671850

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000316

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000216

Gnomad4 OTH exome

AF:

0.0000353

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74364

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000735

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

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

Jul 20, 2022

The c.49T>C (p.W17R) alteration is located in exon 1 (coding exon 1) of the ITGA1 gene. This alteration results from a T to C substitution at nucleotide position 49, causing the tryptophan (W) at amino acid position 17 to be replaced by an arginine (R). 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

Pathogenic

0.56

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Uncertain

0.030

Cadd

Benign

Dann

Benign

0.92

DEOGEN2

Benign

0.063

Eigen

Benign

-0.10

Eigen_PC

Benign

-0.021

FATHMM_MKL

Benign

0.66

LIST_S2

Benign

0.40

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.78

MetaSVM

Benign

-0.34

MutationAssessor

Benign

1.5

MutationTaster

Benign

0.90

N;D

PrimateAI

Uncertain

0.79

PROVEAN

Benign

-2.1

REVEL

Pathogenic

0.72

Sift

Uncertain

0.016

Sift4G

Benign

0.24

Polyphen

0.74

Vest4

0.66

MutPred

0.72

Gain of methylation at W17 (P = 0.0139);

MVP

0.92

MPC

0.27

ClinPred

0.75

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.23

gMVP

0.56

Splicing

Name

Calibrated prediction

Score

Prediction

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.

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