chr2-113119961-G-T

Variant names:

• chr2-113119961-G-T
• ENST00000259206.9:c.11-105G>T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_173841.3(IL1RN):​c.11-105G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000096 in 729,534 control chromosomes in the GnomAD database, including 1 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: not found (cov: 30)
  • Exomes 𝑓: 0.0000096 (1 hom.)
• Consequence: IL1RN NM_173841.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.00600

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]

ACMG classification

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 (BayesDel_noAF=-0.87).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IL1RN	NM_173841.3	c.11-105G>T		intron_variant	Intron 1 of 5		NP_776213.1
IL1RN	NM_000577.5	c.10+1933G>T		intron_variant	Intron 1 of 4		NP_000568.1
IL1RN	NM_001318914.2	c.-272-105G>T		intron_variant	Intron 1 of 6		NP_001305843.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IL1RN	ENST00000259206.9	c.11-105G>T		intron_variant	Intron 1 of 5	1		ENSP00000259206.5
IL1RN	ENST00000354115.6	c.10+1933G>T		intron_variant	Intron 1 of 4	1		ENSP00000329072.3
IL1RN	ENST00000361779.7	c.-209-1487G>T		intron_variant	Intron 1 of 5	1		ENSP00000354816.3

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 0.00000960 AC: 7 AN: 729534 Hom.: 1 AF XY: 0.0000104 AC XY: 4 AN XY: 383928

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000105

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	2.5
DANN	Benign	0.58

Splicing

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-113877538;