rs12722698

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000417.3(IL2RA):​c.753C>T​(p.Ile251=) 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

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 2.36
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -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 id 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.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IL2RANM_000417.3 linkuse as main transcriptc.753C>T p.Ile251= synonymous_variant 7/8 ENST00000379959.8 NP_000408.1
LOC124902368XR_007062042.1 linkuse as main transcriptn.143+1762G>A intron_variant, non_coding_transcript_variant
IL2RANM_001308242.2 linkuse as main transcriptc.537C>T p.Ile179= synonymous_variant 6/7 NP_001295171.1
IL2RANM_001308243.2 linkuse as main transcriptc.465C>T p.Ile155= synonymous_variant 5/6 NP_001295172.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IL2RAENST00000379959.8 linkuse as main transcriptc.753C>T p.Ile251= synonymous_variant 7/81 NM_000417.3 ENSP00000369293 P1

Frequencies

GnomAD3 genomes
AF:
0.0167
AC:
2541
AN:
152106
Hom.:
69
Cov.:
31
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
GnomAD3 exomes
AF:
0.00451
AC:
1133
AN:
251014
Hom.:
36
AF XY:
0.00362
AC XY:
492
AN XY:
135726
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 SAS exome
AF:
0.0000654
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.:
65
Cov.:
31
AF XY:
0.00139
AC XY:
1010
AN XY:
727130
show subpopulations
Gnomad4 AFR exome
AF:
0.0587
Gnomad4 AMR exome
AF:
0.00353
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000414
Gnomad4 OTH exome
AF:
0.00341
GnomAD4 genome
AF:
0.0168
AC:
2557
AN:
152224
Hom.:
71
Cov.:
31
AF XY:
0.0169
AC XY:
1260
AN XY:
74436
show subpopulations
Gnomad4 AFR
AF:
0.0587
Gnomad4 AMR
AF:
0.00601
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.00853
Alfa
AF:
0.00490
Hom.:
18
Bravo
AF:
0.0184
Asia WGS
AF:
0.00664
AC:
24
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Immunodeficiency due to CD25 deficiency Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
7.3
DANN
Benign
0.77

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs12722698; hg19: chr10-6060057; API