22-37128170-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000878.5(IL2RB):c.1582C>T(p.Arg528Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000301 in 1,563,008 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R528H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

IL2RB
NM_000878.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.58

Variant links:

Genes affected

IL2RB (HGNC:6009): (interleukin 2 receptor subunit beta) The interleukin 2 receptor, which is involved in T cell-mediated immune responses, is present in 3 forms with respect to ability to bind interleukin 2. The low affinity form is a monomer of the alpha subunit and is not involved in signal transduction. The intermediate affinity form consists of an alpha/beta subunit heterodimer, while the high affinity form consists of an alpha/beta/gamma subunit heterotrimer. Both the intermediate and high affinity forms of the receptor are involved in receptor-mediated endocytosis and transduction of mitogenic signals from interleukin 2. The protein encoded by this gene represents the beta subunit and is a type I membrane protein. The use of alternative promoters results in multiple transcript variants encoding the same protein. The protein is primarily expressed in the hematopoietic system. The use by some variants of an alternate promoter in an upstream long terminal repeat (LTR) results in placenta-specific expression. [provided by RefSeq, Sep 2016]

IL2RB links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06489915).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
IL2RB	NM_000878.5 linkuse as main transcript	c.1582C>T	p.Arg528Cys	missense_variant	10/10	ENST00000216223.10
IL2RB	NM_001346222.1 linkuse as main transcript	c.1582C>T	p.Arg528Cys	missense_variant	10/10
IL2RB	NM_001346223.2 linkuse as main transcript	c.1582C>T	p.Arg528Cys	missense_variant	10/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IL2RB	ENST00000216223.10 linkuse as main transcript	c.1582C>T	p.Arg528Cys	missense_variant	10/10	1	NM_000878.5	P4

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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:

0.00633

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000305

AC:

AN:

196740

Hom.:

AF XY:

0.0000378

AC XY:

AN XY:

105828

show subpopulations

Gnomad AFR exome

AF:

0.0000672

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000496

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000428

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000276

AC:

AN:

1410780

Hom.:

Cov.:

AF XY:

0.0000300

AC XY:

AN XY:

699334

show subpopulations

Gnomad4 AFR exome

AF:

0.0000320

Gnomad4 AMR exome

AF:

0.0000288

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000389

Gnomad4 FIN exome

AF:

0.0000772

Gnomad4 NFE exome

AF:

0.0000266

Gnomad4 OTH exome

AF:

0.0000172

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74410

show subpopulations

Gnomad4 AFR

AF:

0.0000962

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:

0.0000441

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000340

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Oct 17, 2022

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 528 of the IL2RB protein (p.Arg528Cys). This variant is present in population databases (rs377234631, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with IL2RB-related conditions. ClinVar contains an entry for this variant (Variation ID: 1520197). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The cysteine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.082

BayesDel_addAF

Benign

-0.55

BayesDel_noAF

Benign

-0.84

Cadd

Benign

0.19

Dann

Benign

0.77

DEOGEN2

Benign

0.27

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.0080

LIST_S2

Benign

0.53

M_CAP

Benign

0.0076

MetaRNN

Benign

0.065

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.27

MutationTaster

Benign

1.0

PrimateAI

Benign

0.24

PROVEAN

Benign

1.2

REVEL

Benign

0.036

Sift

Benign

0.10

Sift4G

Benign

0.13

Polyphen

0.0020

Vest4

0.018

MVP

0.082

MPC

0.12

ClinPred

0.028

GERP RS

-2.7

Varity_R

0.038

gMVP

0.10

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