3LB6	Signaling Protein Signaling Protein	date	Jan 07, 2010
title	The Structure Of Il-13 In Complex With Il-13ralpha2
authors	P.J.Lupardus, K.C.Garcia, M.E.Birnbaum
compound		source
Molecule: Interleukin-13 Chain: A Synonym: Il-13 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Il13, Nc30 Expression_system: Trichoplusia Ni Expression_system_taxid: 7111 Expression_system_vector_type: Baculovirus Expression_system_plasmid: Pacgp67
Molecule: Interleukin-13 Receptor Subunit Alpha-2 Chain: C Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Trichoplusia Ni Expression_system_taxid: 7111 Expression_system_vector_type: Baculovirus Expression_system_plasmid: Pacgp67
Molecule: Interleukin-13 Chain: B Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Il13, Nc30 Expression_system: Trichoplusia Ni Expression_system_taxid: 7111 Expression_system_vector_type: Baculovirus Expression_system_plasmid: Pacgp67
Molecule: Interleukin-13 Receptor Subunit Alpha-2 Chain: D Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Trichoplusia Ni Expression_system_taxid: 7111 Expression_system_vector_type: Baculovirus Expression_system_plasmid: Pacgp67
symmetry	Space Group: I 1 2 1	R_factor 0.219 R_Free 0.269
crystal cell	length a length b length c angle alpha angle beta angle gamma 73.370 86.570 166.788 90.00 96.77 90.00
method	X-Ray Diffraction	resolution	3.05 Å
ligand	CA, MLY, NAG	enzyme
Gene Ontology	Chain Function Process Component A, B cytokine activity interleukin-13 receptor bind... protein binding positive regulation of immun... cellular component movement inflammatory response signal transduction cell-cell signaling response to mechanical stimu... regulation of proton transpo... positive regulation of B cel... response to lipopolysacchari... positive regulation of conne... response to nicotine positive regulation of tyros... positive regulation of macro... positive regulation of ion t... response to ethanol positive regulation of smoot... positive regulation of prote... positive regulation of relea... cellular response to mechani... cellular response to cytokin... negative regulation of trans... negative regulation of lung ... positive regulation of lung ... positive regulation of pancr... extracellular region extracellular space cytoplasm external side of plasma memb...
Primary reference	Molecular basis for shared cytokine recognition revealed in the structure of an unusually high affinity complex between IL-13 and IL-13Ralpha2., Lupardus PJ, Birnbaum ME, Garcia KC, Structure. 2010 Mar 10;18(3):332-42. PMID:20223216

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (256 Kb) [Save to disk] Biological Unit Coordinates (3lb6.pdb1.gz) 121 Kb Biological Unit Coordinates (3lb6.pdb2.gz) 130 Kb LPC: Ligand-Protein Contacts for 3LB6 CSU: Contacts of Structural Units for 3LB6 Structure Factors (1068 Kb) Retrieve 3LB6 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3LB6 from S2C, [Save to disk] Re-refined 3lb6 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3LB6 in 3D

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Visual 3D analysis of 3LB6

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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 3LB6, from MSDmotif at EBI Fold representative 3lb6 from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3lb6_A] [3lb6_B] [3lb6_C] [3lb6_D] SWISS-PROT database: Domain organization of by SWISSPFAM Alignments of the sequence of 3LB6 with the sequences similar proteins can be viewed for 3LB6's classification at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification at ProtoMap. Click on the Cluster number.

Other resources with information on 3LB6

Community annotation for 3LB6 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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