rs2073362

chr21-33248496-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001289125.3(IFNAR2):c.395-213A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0745 in 152,312 control chromosomes in the GnomAD database, including 594 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.075 (594 hom., cov: 31)
• Consequence: IFNAR2 NM_001289125.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.732

Genes affected

IFNAR2 (HGNC:5433): (interferon alpha and beta receptor subunit 2) The protein encoded by this gene is a type I membrane protein that forms one of the two chains of a receptor for interferons alpha and beta. Binding and activation of the receptor stimulates Janus protein kinases, which in turn phosphorylate several proteins, including STAT1 and STAT2. The protein belongs to the type II cytokine receptor family. Mutations in this gene are associated with Immunodeficiency 45. [provided by RefSeq, Jul 2020]

IFNAR2-IL10RB (HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.187 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IFNAR2	NM_001289125.3	c.395-213A>G		intron_variant		ENST00000342136.9
IFNAR2-IL10RB	NM_001414505.1	c.395-213A>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IFNAR2	ENST00000342136.9	c.395-213A>G		intron_variant		1	NM_001289125.3	P2

Frequencies

GnomAD3 genomes AF: 0.0745 AC: 11345 AN: 152194 Hom.: 592 Cov.: 31

Gnomad AFR AF: 0.0166

Gnomad AMI AF: 0.0482

Gnomad AMR AF: 0.124

Gnomad ASJ AF: 0.0778

Gnomad EAS AF: 0.198

Gnomad SAS AF: 0.135

Gnomad FIN AF: 0.0932

Gnomad MID AF: 0.142

Gnomad NFE AF: 0.0821

Gnomad OTH AF: 0.0690

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0745 AC: 11349 AN: 152312 Hom.: 594 Cov.: 31 AF XY: 0.0802 AC XY: 5975 AN XY: 74472

Gnomad4 AFR AF: 0.0166

Gnomad4 AMR AF: 0.124

Gnomad4 ASJ AF: 0.0778

Gnomad4 EAS AF: 0.197

Gnomad4 SAS AF: 0.135

Gnomad4 FIN AF: 0.0932

Gnomad4 NFE AF: 0.0821

Gnomad4 OTH AF: 0.0739

Alfa AF: 0.0812 Hom.: 750

Bravo AF: 0.0737

Asia WGS AF: 0.152 AC: 528 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
Cadd	Benign	4.7
Dann	Benign	0.63

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

Other links and lift over

dbSNP: rs2073362; hg19: chr21-34620801;