rs2637988

Positions:

• chr2-113119202-G-A

Variant summary

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

The NM_173841.3(IL1RN):​c.11-864G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.533 in 152,050 control chromosomes in the GnomAD database, including 22,037 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 0.53 (22037 hom., cov: 32)
• Consequence: IL1RN NM_173841.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0830

Genes affected

IL1RN (HGNC:6000): (interleukin 1 receptor antagonist) The protein encoded by this gene is a member of the interleukin 1 cytokine family. This protein inhibits the activities of interleukin 1, alpha (IL1A) and interleukin 1, beta (IL1B), and modulates a variety of interleukin 1 related immune and inflammatory responses, particularly in the acute phase of infection and inflammation. This gene and five other closely related cytokine genes form a gene cluster spanning approximately 400 kb on chromosome 2. A polymorphism of this gene is reported to be associated with increased risk of osteoporotic fractures and gastric cancer. Several alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Aug 2020]

IL1RN (HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.598 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IL1RN	NM_173841.3	c.11-864G>A		intron_variant			NP_776213.1
IL1RN	NM_000577.5	c.10+1174G>A		intron_variant			NP_000568.1
IL1RN	NM_001318914.2	c.-272-864G>A		intron_variant			NP_001305843.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IL1RN	ENST00000259206.9	c.11-864G>A		intron_variant		1		ENSP00000259206.5
IL1RN	ENST00000354115.6	c.10+1174G>A		intron_variant		1		ENSP00000329072.3
IL1RN	ENST00000361779.7	c.-210+1174G>A		intron_variant		1		ENSP00000354816.3

Frequencies

GnomAD3 genomes AF: 0.534 AC: 81061 AN: 151934 Hom.: 22027 Cov.: 32

Gnomad AFR AF: 0.441

Gnomad AMI AF: 0.602

Gnomad AMR AF: 0.548

Gnomad ASJ AF: 0.597

Gnomad EAS AF: 0.409

Gnomad SAS AF: 0.555

Gnomad FIN AF: 0.448

Gnomad MID AF: 0.598

Gnomad NFE AF: 0.603

Gnomad OTH AF: 0.550

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

GnomAD4 genome AF: 0.533 AC: 81112 AN: 152050 Hom.: 22037 Cov.: 32 AF XY: 0.528 AC XY: 39225 AN XY: 74306

Gnomad4 AFR AF: 0.441

Gnomad4 AMR AF: 0.547

Gnomad4 ASJ AF: 0.597

Gnomad4 EAS AF: 0.410

Gnomad4 SAS AF: 0.556

Gnomad4 FIN AF: 0.448

Gnomad4 NFE AF: 0.603

Gnomad4 OTH AF: 0.551

Alfa AF: 0.588 Hom.: 12209

Bravo AF: 0.536

Asia WGS AF: 0.482 AC: 1677 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	2.6
DANN	Benign	0.58

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs2637988; hg19: chr2-113876779;