rs315952

chr2-113132727-T-Achr2-113132727-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_173842.3(IL1RN):c.390T>A(p.Ser130Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S130G) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: IL1RN NM_173842.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.15

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 Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.11766142).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IL1RN	NM_173842.3	c.390T>A	p.Ser130Arg	missense_variant	4/4	ENST00000409930.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IL1RN	ENST00000409930.4	c.390T>A	p.Ser130Arg	missense_variant	4/4	1	NM_173842.3	P4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251324 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135834

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 37

GnomAD4 genome Cov.: 33

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.65
Cadd	Benign	0.018
Dann	Benign	0.96
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.5
FATHMM_MKL	Benign	0.0091	N
M_CAP	Benign	0.0093	T
MetaRNN	Benign	0.12	T;T;T;T;T
MetaSVM	Benign	-0.83	T
MutationTaster	Benign	1.0	P;P;P;P;P
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-2.2	N;N;N;N;N
REVEL	Benign	0.14
Sift	Benign	0.33	T;T;T;T;T
Sift4G	Benign	0.49	T;T;T;T;T
Polyphen		0.55, 0.33	.;.;.;P;B
Vest4		0.18
MutPred		0.48		.;.;.;.;Gain of solvent accessibility (P = 0.0155);
MVP		0.28
MPC		0.14
ClinPred		0.22	T
GERP RS		-11
Varity_R		0.19
gMVP		0.50

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: rs315952; hg19: chr2-113890304;