4KC3 Immune System date Apr 24, 2013
title Cytokinereceptor Binary Complex
authors X.Liu, X.Q.Wang
compound source
Molecule: Interleukin-33
Chain: A
Fragment: Unp Residues 112-270
Synonym: Il-33, Interleukin-1 Family Member 11, Il-1f11, Nu Factor From High Endothelial Venules, Nf-Hev;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Il33, C9orf26, Il1f11, Nfhev
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Interleukin-1 Receptor-Like 1
Chain: B
Fragment: Unp Residues 19-321
Synonym: Protein St2
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Il1rl1, Der4, St2, T1
Expression_system: Spodoptera Frugiperda
Expression_system_common: Fall Armyworm
Expression_system_taxid: 7108
symmetry Space Group: H 3 2
R_factor 0.238 R_Free 0.283
length a length b length c angle alpha angle beta angle gamma
329.924 329.924 43.731 90.00 90.00 120.00
method X-Ray Diffractionresolution 3.27 Å
ligand MSE, NAG enzyme


Primary referenceStructural insights into the interaction of IL-33 with its receptors., Liu X, Hammel M, He Y, Tainer JA, Jeng US, Zhang L, Wang S, Wang X, Proc Natl Acad Sci U S A. 2013 Aug 26. PMID:23980170
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (146 Kb) [Save to disk]
  • Biological Unit Coordinates (4kc3.pdb1.gz) 140 Kb
  • LPC: Ligand-Protein Contacts for 4KC3
  • CSU: Contacts of Structural Units for 4KC3
  • Structure Factors (125 Kb)
  • Retrieve 4KC3 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4KC3 from S2C, [Save to disk]
  • Re-refined 4kc3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4KC3 in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 4KC3
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 4KC3, from MSDmotif at EBI
  • Fold representative 4kc3 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4kc3] [4kc3_A] [4kc3_B]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Domains found in 4KC3: [IG_like] [IGc2 ] by SMART
  • Other resources with information on 4KC3
  • Community annotation for 4KC3 at PDBWiki (http://pdbwiki.org)

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