3BPO	Cytokine Cytokine Receptor	date	Dec 18, 2007
title	Crystal Structure Of The Il13-Il4r-Il13ra Ternary Complex
authors	K.C.Garcia
compound		source
Molecule: Interleukin 13 Chain: A Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Il13 Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108 Expression_system_strain: Sf9
Molecule: Interleukin-4 Receptor Alpha Chain Chain: B Fragment: Extracellular Domain, Residues 27-227 Synonym: Il-4r-Alpha, Cd124 Antigen, Soluble Interleukin-4 Alpha Chain; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Il4r, 582j2.1, Il4ra Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108 Expression_system_strain: Sf9
Molecule: Interleukin-13 Receptor Alpha-1 Chain Chain: C Fragment: Extracellular Domain, Residues 29-342 Synonym: Il-13r-Alpha-1, Il-13ra-1, Cancertestis Antigen 1 Cd213a1 Antigen; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Il13ra1, Il13r, Il13ra Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108 Expression_system_strain: Sf9
symmetry	Space Group: C 1 2 1	R_factor 0.253 R_Free 0.312
crystal cell	length a length b length c angle alpha angle beta angle gamma 211.510 58.169 64.236 90.00 100.51 90.00
method	X-Ray Diffraction	resolution	3.00 Å
ligand	NAG	enzyme
Gene Ontology	Chain Function Process Component A B C
Primary reference	Molecular and Structural Basis of Cytokine Receptor Pleiotropy in the Interleukin-4/13 System., Laporte SL, Juo ZS, Vaclavikova J, Colf LA, Qi X, Heller NM, Keegan AD, Garcia KC, Cell. 2008 Jan 25;132(2):259-272. PMID:18243101

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (101 Kb) [Save to disk] Biological Unit Coordinates (3bpo.pdb1.gz) 91 Kb LPC: Ligand-Protein Contacts for 3BPO CSU: Contacts of Structural Units for 3BPO Likely Quarternary Molecular Structure file(s) for 3BPO Structure Factors (128 Kb) Retrieve 3BPO in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3BPO from S2C, [Save to disk] Re-refined 3bpo structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3BPO 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 3BPO

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 3D motif for 3BPO, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3bpo_C] [3bpo_A] [3bpo] [3bpo_B] SWISS-PROT database: [P78552] [P35225] [P24394] Domain organization of [I13R1_HUMAN] [IL13_HUMAN] [IL4RA_HUMAN] by SWISSPFAM Domains found in 3BPO: [FN3] [IL4_13 ] by SMART

Other resources with information on 3BPO

Community annotation for 3BPO at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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