dbSNP rs12722698: IL2RA:p.Ile251Ile (chr10-6018094-G-A) – ACMG Classification: Benign (-21 pts)

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000417.3(IL2RA):c.753C>T(p.Ile251Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00307 in 1,613,914 control chromosomes in the GnomAD database, including 136 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 71 hom., cov: 31)

Exomes 𝑓: 0.0016 ( 65 hom. )

Consequence

IL2RA
NM_000417.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 2.36

Publications

5 publications found

Variant links:

Genes affected

IL2RA (HGNC:6008): (interleukin 2 receptor subunit alpha) The interleukin 2 (IL2) receptor alpha (IL2RA) and beta (IL2RB) chains, together with the common gamma chain (IL2RG), constitute the high-affinity IL2 receptor. Homodimeric alpha chains (IL2RA) result in low-affinity receptor, while homodimeric beta (IL2RB) chains produce a medium-affinity receptor. Normally an integral-membrane protein, soluble IL2RA has been isolated and determined to result from extracellular proteolyisis. Alternately-spliced IL2RA mRNAs have been isolated, but the significance of each is presently unknown. Mutations in this gene are associated with interleukin 2 receptor alpha deficiency. Patients with severe Coronavirus Disease 2019 (COVID-19), the disease caused by the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), have significantly elevated levels of IL2R in their plasma. Similarly, serum IL-2R levels are found to be elevated in patients with different types of carcinomas. Certain IL2RA and IL2RB gene polymorphisms have been associated with lung cancer risk. [provided by RefSeq, Jul 2020]

IL2RA Gene-Disease associations (from GenCC):

immunodeficiency due to CD25 deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet
neonatal diabetes mellitus
Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
neonatal diabetes mellitus with congenital hypothyroidism
Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
type 1 diabetes mellitus 10
Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp

IL2RA links:

LOC124902368 (HGNC:):

LOC124902368 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.74).

BP6

Variant 10-6018094-G-A is Benign according to our data. Variant chr10-6018094-G-A is described in ClinVar as Benign. ClinVar VariationId is 300251.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=2.36 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0567 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000417.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
IL2RA	NM_000417.3	MANE Select	c.753C>T	p.Ile251Ile	synonymous	Exon 7 of 8	NP_000408.1	P01589
IL2RA	NM_001308242.2		c.537C>T	p.Ile179Ile	synonymous	Exon 6 of 7	NP_001295171.1	Q5W005
IL2RA	NM_001308243.2		c.465C>T	p.Ile155Ile	synonymous	Exon 5 of 6	NP_001295172.1	H0Y5Z0

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
IL2RA	ENST00000379959.8	TSL:1 MANE Select	c.753C>T	p.Ile251Ile	synonymous	Exon 7 of 8	ENSP00000369293.3	P01589
IL2RA	ENST00000379954.5	TSL:1	c.537C>T	p.Ile179Ile	synonymous	Exon 6 of 7	ENSP00000369287.1	Q5W005
IL2RA	ENST00000447847.2	TSL:1	c.465C>T	p.Ile155Ile	synonymous	Exon 5 of 6	ENSP00000402024.2	H0Y5Z0

Frequencies

GnomAD3 genomes

AF:

0.0167

AC:

2541

AN:

152106

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0585

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00602

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.00862

GnomAD2 exomes

AF:

0.00451

AC:

1133

AN:

251014

AF XY:

0.00362

show subpopulations

Gnomad AFR exome

AF:

0.0626

Gnomad AMR exome

AF:

0.00307

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000440

Gnomad OTH exome

AF:

0.000980

GnomAD4 exome

AF:

0.00164

AC:

2394

AN:

1461690

Hom.:

Cov.:

AF XY:

0.00139

AC XY:

1010

AN XY:

727130

show subpopulations

African (AFR)

AF:

0.0587

AC:

1963

AN:

33462

American (AMR)

AF:

0.00353

AC:

158

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000696

AC:

AN:

86234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53404

Middle Eastern (MID)

AF:

0.00260

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.0000414

AC:

AN:

1111890

Other (OTH)

AF:

0.00341

AC:

206

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

125

251

376

502

627

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

128

192

256

320

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0168

AC:

2557

AN:

152224

Hom.:

Cov.:

AF XY:

0.0169

AC XY:

1260

AN XY:

74436

show subpopulations

African (AFR)

AF:

0.0587

AC:

2436

AN:

41514

American (AMR)

AF:

0.00601

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000147

AC:

AN:

68020

Other (OTH)

AF:

0.00853

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

126

253

379

506

632

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

112

140

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00674

Hom.:

Bravo

AF:

0.0184

Asia WGS

AF:

0.00664

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Immunodeficiency due to CD25 deficiency (2)

not provided (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.74

CADD

Benign

7.3

(source)

DANN

Benign

0.77

PhyloP100

2.4

Mutation Taster

=99/1

polymorphism (auto)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over