X-118758239-C-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001560.3(IL13RA1):c.673C>A(p.Arg225Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000761 in 998,145 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 20 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00040 ( 0 hom., 13 hem., cov: 21)

Exomes 𝑓: 0.000035 ( 0 hom. 7 hem. )

Consequence

IL13RA1
NM_001560.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.495

Variant links:

Genes affected

IL13RA1 (HGNC:5974): (interleukin 13 receptor subunit alpha 1) The protein encoded by this gene is a subunit of the interleukin 13 receptor. This subunit forms a receptor complex with IL4 receptor alpha, a subunit shared by IL13 and IL4 receptors. This subunit serves as a primary IL13-binding subunit of the IL13 receptor, and may also be a component of IL4 receptors. This protein has been shown to bind tyrosine kinase TYK2, and thus may mediate the signaling processes that lead to the activation of JAK1, STAT3 and STAT6 induced by IL13 and IL4. [provided by RefSeq, Jul 2008]

IL13RA1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.024927706).

BS2

High Hemizygotes in GnomAd at 13 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IL13RA1	NM_001560.3 linkuse as main transcript	c.673C>A	p.Arg225Ser	missense_variant	5/11	ENST00000371666.8
IL13RA1	XM_047442096.1 linkuse as main transcript	c.673C>A	p.Arg225Ser	missense_variant	5/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IL13RA1	ENST00000371666.8 linkuse as main transcript	c.673C>A	p.Arg225Ser	missense_variant	5/11	1	NM_001560.3	P1	P78552-1
IL13RA1	ENST00000371642.1 linkuse as main transcript	c.673C>A	p.Arg225Ser	missense_variant	5/6	1			P78552-2
IL13RA1	ENST00000652600.1 linkuse as main transcript	c.667C>A	p.Arg223Ser	missense_variant	6/12
IL13RA1	ENST00000481868.1 linkuse as main transcript	n.261C>A		non_coding_transcript_exon_variant	2/6	3

Frequencies

GnomAD3 genomes

AF:

0.000403

AC:

AN:

111583

Hom.:

Cov.:

AF XY:

0.000384

AC XY:

AN XY:

33815

show subpopulations

Gnomad AFR

AF:

0.00144

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:

0.00

Gnomad OTH

AF:

0.000667

GnomAD3 exomes

AF:

0.000160

AC:

AN:

168749

Hom.:

AF XY:

0.000125

AC XY:

AN XY:

56105

show subpopulations

Gnomad AFR exome

AF:

0.00209

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000350

AC:

AN:

886562

Hom.:

Cov.:

AF XY:

0.0000305

AC XY:

AN XY:

229768

show subpopulations

Gnomad4 AFR exome

AF:

0.00124

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000150

Gnomad4 OTH exome

AF:

0.0000529

GnomAD4 genome

AF:

0.000403

AC:

AN:

111583

Hom.:

Cov.:

AF XY:

0.000384

AC XY:

AN XY:

33815

show subpopulations

Gnomad4 AFR

AF:

0.00144

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:

0.00

Gnomad4 OTH

AF:

0.000667

Alfa

AF:

0.0000382

Hom.:

Bravo

AF:

0.000408

ESP6500AA

AF:

0.00156

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000140

AC:

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

Apr 11, 2023

The c.673C>A (p.R225S) alteration is located in exon 5 (coding exon 5) of the IL13RA1 gene. This alteration results from a C to A substitution at nucleotide position 673, causing the arginine (R) at amino acid position 225 to be replaced by a serine (S). 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

0.21

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.33

Cadd

Benign

Dann

Benign

0.94

DEOGEN2

Benign

0.13

T;.

FATHMM_MKL

Benign

0.025

LIST_S2

Benign

0.68

T;T

M_CAP

Pathogenic

0.50

MetaRNN

Benign

0.025

T;T

MetaSVM

Uncertain

-0.22

MutationAssessor

Benign

1.4

L;L

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.21

PROVEAN

Benign

-0.090

N;N

REVEL

Benign

0.16

Sift

Benign

0.39

T;T

Sift4G

Benign

0.33

T;T

Polyphen

0.26

B;.

Vest4

0.31

MVP

0.70

MPC

0.29

ClinPred

0.014

GERP RS

0.30

Varity_R

0.29

gMVP

0.61

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