1LK3	Immune System	date	Apr 23, 2002
title	Engineered Human Interleukin-10 Monomer Complexed To 9d7 Fab Fragment
authors	K.Josephson, B.C.Jones, L.J.Walter, R.Digiacomo, S.R.Indelicato, M.R.Walter
compound		source
Molecule: Interleukin-10 Chain: A, B Fragment: Residues 26-175 Synonym: Il-10m1 (Engineered Monomer Of Human Interleukin- 10), Il-10, Cytokine Synthesis Inhibitory Factor, Csif; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Il10 Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Novagen Pet System Expression_system_plasmid: Pet32lic
Molecule: 9d7 Light Chain Chain: L, M Fragment: Fab Fragment, Residues 1-210		Organism_scientific: Rattus Norvegicus Organism_common: Norway Rat Organism_taxid: 10116 Other_details: Hybridoma
Molecule: 9d7 Heavy Chain Chain: H, I Fragment: Fab Fragment, Residues 1-219		Organism_scientific: Rattus Norvegicus Organism_common: Norway Rat Organism_taxid: 10116 Other_details: Hybridoma
symmetry	Space Group: P 1 21 1	R_factor 0.187 R_Free 0.240
crystal cell	length a length b length c angle alpha angle beta angle gamma 82.554 75.616 111.975 90.00 96.85 90.00
method	X-Ray Diffraction	resolution	1.91 Å
related structures	by homologous chain: 1A3L, 1E4X, 1INR, 1VLK
Gene Ontology	Chain Function Process Component A, B
Primary reference	Noncompetitive antibody neutralization of IL-10 revealed by protein engineering and x-ray crystallography., Josephson K, Jones BC, Walter LJ, DiGiacomo R, Indelicato SR, Walter MR, Structure (Camb) 2002 Jul;10(7):981-7. PMID:12121653

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (207 Kb) [Save to disk] Biological Unit Coordinates (1lk3.pdb1.gz) 105 Kb Biological Unit Coordinates (1lk3.pdb2.gz) 102 Kb CSU: Contacts of Structural Units for 1LK3 Likely Quarternary Molecular Structure file(s) for 1LK3 Structure Factors (969 Kb) Retrieve 1LK3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1LK3 from S2C, [Save to disk] Re-refined 1lk3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1LK3 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 1LK3

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 1LK3, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1lk3a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1lk3b_, region B [Jmol] [rasmolscript] [script source]     - Domain d1lk3h1, region H:1-119 [Jmol] [rasmolscript] [script source]     - Domain d1lk3h2, region H:120-219 [Jmol] [rasmolscript] [script source]     - Domain d1lk3i1, region I:1-119 [Jmol] [rasmolscript] [script source]     - Domain d1lk3i2, region I:120-219 [Jmol] [rasmolscript] [script source]     - Domain d1lk3l1, region L:1-106 [Jmol] [rasmolscript] [script source]     - Domain d1lk3l2, region L:107-210 [Jmol] [rasmolscript] [script source]     - Domain d1lk3m1, region M:1-106 [Jmol] [rasmolscript] [script source]     - Domain d1lk3m2, region M:107-210 [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1lk3_L] [1lk3_H] [1lk3] [1lk3_I] [1lk3_A] [1lk3_M] [1lk3_B] SWISS-PROT database: [P20759] [P22301] [P01835] Domain organization of [IGHG1_RAT] [IL10_HUMAN] [KACB_RAT] by SWISSPFAM Domains found in 1LK3: [IG_like] [IGv] [IL10 ] by SMART

Other resources with information on 1LK3

Community annotation for 1LK3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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