Lineage for Species: Human (Homo sapiens) [TaxId: 9606]
- Root: SCOPe 2.08
Class b: All beta proteins [48724] (180 folds) 
Fold b.42: beta-Trefoil [50352] (8 superfamilies)
barrel, closed; n=6, S=12; and a hairpin triplet; meander
duplication: has internal pseudo threefold symmetry
Superfamily b.42.1: Cytokine [50353] (3 families) 
Family b.42.1.2: Interleukin-1 (IL-1) [50362] (6 proteins) 
Protein Interleukin-1 receptor antagonist protein [50366] (1 species) Species Human (Homo sapiens) [TaxId:9606] [50367] (5 PDB entries)
PDB entries in Species: Human (Homo sapiens) [TaxId: 9606]:
- Domain(s) for 1ilr:
Domain d1ilr1_: 1ilr 1: [25552] 
Domain d1ilr2_: 1ilr 2: [25553]
- Domain(s) for 1ilt:
Domain d1ilta_: 1ilt A: [25554]
CA-atoms only
Domain d1iltb_: 1ilt B: [25555]
CA-atoms only
- Domain(s) for 1ira:
Domain d1irax_: 1ira X: [25556]
Other proteins in same PDB: d1iray1, d1iray2, d1iray3
complexed with nag
- Domain(s) for 1irp:
Domain d1irpa1: 1irp A:2-153 [25559]
Other proteins in same PDB: d1irpa2
- Domain(s) for 2irt:
Domain d2irta_: 2irt A: [25557]
CA-atoms only
Domain d2irtb_: 2irt B: [25558]
CA-atoms only
More info for Species Human (Homo sapiens) [TaxId:9606] from b.42.1.2 Interleukin-1 receptor antagonist protein
Timeline for Species Human (Homo sapiens) [TaxId:9606] from b.42.1.2 Interleukin-1 receptor antagonist protein:
- Species Human (Homo sapiens) [TaxId:9606] from b.42.1.2 Interleukin-1 receptor antagonist protein first appeared (with stable ids) in SCOP 1.55
- Species Human (Homo sapiens) [TaxId:9606] from b.42.1.2 Interleukin-1 receptor antagonist protein appears in SCOPe 2.07