Incidental Mutation 'G5030:Il1r1'
Institutional Source Beutler Lab
Gene Symbol Il1r1
Ensembl Gene ENSMUSG00000026072
Gene Nameinterleukin 1 receptor, type I
SynonymsIL-1R1, IL-iR, CD121a, IL-1 receptor alpha chain, Il1r-1
Accession Numbers

Genbank: NM_008362, NM_001123382

Is this an essential gene? Probably non essential (E-score: 0.074) question?
Stock #G5030 (G3) of strain 560
Quality Score
Status Validated
Chromosomal Location40225080-40317257 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to G at 40313163 bp
Amino Acid Change Lysine to Glutamic Acid at position 498 (K498E)
Ref Sequence ENSEMBL: ENSMUSP00000110443 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000027241] [ENSMUST00000114795]
Predicted Effect possibly damaging
Transcript: ENSMUST00000027241
AA Change: K501E

PolyPhen 2 Score 0.477 (Sensitivity: 0.89; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000027241
Gene: ENSMUSG00000026072
AA Change: K501E

signal peptide 1 19 N/A INTRINSIC
IG 38 117 2.94e-1 SMART
IG_like 132 218 5.56e0 SMART
IG 236 333 1.35e0 SMART
Blast:TIR 347 381 1e-7 BLAST
TIR 387 544 1.93e-29 SMART
Predicted Effect possibly damaging
Transcript: ENSMUST00000114795
AA Change: K498E

PolyPhen 2 Score 0.798 (Sensitivity: 0.84; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000110443
Gene: ENSMUSG00000026072
AA Change: K498E

signal peptide 1 16 N/A INTRINSIC
IG 35 114 2.94e-1 SMART
IG_like 129 215 5.56e0 SMART
IG 233 330 1.35e0 SMART
Blast:TIR 344 378 1e-7 BLAST
TIR 384 541 1.93e-29 SMART
Meta Mutation Damage Score 0.0621 question?
Coding Region Coverage
  • 1x: 81.1%
  • 3x: 60.2%
Het Detection Efficiency35.6%
Validation Efficiency 87% (206/237)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a cytokine receptor that belongs to the interleukin-1 receptor family. The encoded protein is a receptor for interleukin-1 alpha, interleukin-1 beta, and interleukin-1 receptor antagonist. It is an important mediator involved in many cytokine-induced immune and inflammatory responses. This gene is located in a cluster of related cytokine receptor genes on chromosome 2q12. [provided by RefSeq, Dec 2013]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit increased susceptibility to bacterial infection, reduced IL1b responsiveness, delayed tooth eruption, decreased susceptibility to experimental autoimmune uveoritinitis, decreased susceptibility to kidney reperfusion injury, and late onset obesity. [provided by MGI curators]
Allele List at MGI

All alleles(3) : Targeted, knock-out(2) Gene trapped(1)

Other mutations in this stock
Total: 30 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca8a T A 11: 110,070,339 I585F probably damaging Het
Adam18 C G 8: 24,651,856 L232F probably benign Homo
Atp13a4 A G 16: 29,455,488 I385T probably damaging Homo
Ccdc17 T A 4: 116,598,502 S277T probably benign Het
Ccng1 A G 11: 40,753,802 probably benign Het
Ces1f T C 8: 93,274,219 D99G probably benign Het
Clec16a G A 16: 10,571,561 R187Q probably damaging Homo
Cryl1 C T 14: 57,342,138 probably benign Het
Cryzl2 C T 1: 157,465,010 Q48* probably null Het
Dtx4 A G 19: 12,469,579 L583P probably benign Het
Ephx4 A T 5: 107,429,827 D339V probably damaging Het
Eri2 A T 7: 119,786,378 V300E possibly damaging Het
F3 T A 3: 121,724,999 N37K probably damaging Homo
Fpr1 A T 17: 17,876,806 L307H probably damaging Het
Fv1 T A 4: 147,869,161 N61K possibly damaging Het
Gm5548 T C 3: 113,054,196 noncoding transcript Homo
Myh11 T C 16: 14,250,579 I192M probably damaging Homo
Nckap5 T C 1: 126,025,854 K923R probably damaging Het
Nmbr A T 10: 14,767,003 Y102F possibly damaging Het
Olfr790 A G 10: 129,501,537 T218A probably benign Homo
Pde1a C T 2: 79,887,836 probably benign Het
Pex6 T C 17: 46,715,456 probably benign Het
Rtn2 T C 7: 19,293,174 S305P probably damaging Homo
Saal1 G A 7: 46,692,783 T412I probably damaging Homo
Slc46a2 A T 4: 59,913,867 I352N probably damaging Het
Trim37 A T 11: 87,143,141 H99L probably damaging Het
Tubgcp4 C T 2: 121,184,334 R242C probably damaging Het
Twf2 C A 9: 106,206,942 L27I possibly damaging Het
Usp40 A T 1: 87,994,219 H307Q probably damaging Het
Zfhx3 T G 8: 108,951,459 V3047G possibly damaging Het
Other mutations in Il1r1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01457:Il1r1 APN 1 40313170 missense probably damaging 1.00
IGL01532:Il1r1 APN 1 40294928 critical splice donor site probably null
IGL01610:Il1r1 APN 1 40302400 missense probably benign 0.09
IGL01668:Il1r1 APN 1 40313329 missense probably benign 0.31
IGL01729:Il1r1 APN 1 40294826 missense probably damaging 1.00
IGL02201:Il1r1 APN 1 40313268 missense probably damaging 0.97
IGL02229:Il1r1 APN 1 40313358 missense probably damaging 0.99
IGL02428:Il1r1 APN 1 40313232 missense possibly damaging 0.74
IGL02902:Il1r1 APN 1 40302409 missense probably benign 0.09
R0604:Il1r1 UTSW 1 40282246 missense probably benign 0.36
R1515:Il1r1 UTSW 1 40293349 nonsense probably null
R1530:Il1r1 UTSW 1 40312361 missense probably benign 0.00
R1727:Il1r1 UTSW 1 40293264 missense probably benign 0.16
R1957:Il1r1 UTSW 1 40313140 nonsense probably null
R2163:Il1r1 UTSW 1 40294863 missense probably benign 0.00
R2313:Il1r1 UTSW 1 40313310 missense probably benign 0.19
R4345:Il1r1 UTSW 1 40297924 missense probably benign 0.00
R4622:Il1r1 UTSW 1 40312420 missense probably damaging 0.96
R4735:Il1r1 UTSW 1 40293295 missense probably benign 0.00
R5033:Il1r1 UTSW 1 40293524 missense probably damaging 1.00
R5586:Il1r1 UTSW 1 40225251 start gained probably benign
R6375:Il1r1 UTSW 1 40294890 missense probably damaging 1.00
R6383:Il1r1 UTSW 1 40313335 missense possibly damaging 0.58
R6618:Il1r1 UTSW 1 40300811 missense probably damaging 0.97
R7169:Il1r1 UTSW 1 40293359 critical splice donor site probably null
R7384:Il1r1 UTSW 1 40282261 missense possibly damaging 0.64
R7798:Il1r1 UTSW 1 40310366 missense probably benign
R8040:Il1r1 UTSW 1 40313349 missense probably benign 0.01
R8129:Il1r1 UTSW 1 40302287 missense probably benign 0.04
RF007:Il1r1 UTSW 1 40313278 missense probably damaging 1.00
Nature of Mutation

DNA sequencing using the SOLiD technique identified an A to G transition at position 1725 of the Il1r1 transcript using Genbank record NM_008362 in exon 11 of 11 total exons. Two transcripts of the Il1r1 gene are displayed on Ensembl and Vega. The mutated nucleotide causes a lysine to glutamic acid substitution at amino acid 104 of the encoded protein. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).

Protein Function and Prediction

The Il1r1 gene encodes the 576 amino acid receptor for interleukin-1 alpha (IL-1A), beta (IL-1B), and interleukin-1 receptor antagonist protein (IL-1RA). Binding to the agonist leads to the activation of NF-kappaB. Signaling involves formation of a ternary complex containing IL1RAP, TOLLIP, MYD88, and IRAK1 or IRAK2. IL1R1 is a single-pass type I membrane protein that contains  three immunoglobulin (Ig)-like domains at residues 25-115, 121-213 and 229-329, and a cytoplasmic TIR domain at residues 386-544 (Uniprot P13504). Homozygous null mice are grossly normal but fail to respond to IL-1. Mice have decreased skeletal growth.

The K501E change occurs in the TIR domain, but is predicted to be benign by the PolyPhen program (see report). 
Posted On2010-10-26