1LKE	Ligand Binding Protein	date	Apr 25, 2002
title	Engineered Lipocalin Diga16 In Complex With Digoxigenin
authors	I.P.Korndoerfer, A.Skerra
compound		source
Molecule: Diga16 Chain: A Synonym: Bilin Binding Protein, Bbp, Diga16 Anticalin Engineered: Yes Mutation: Yes Other_details: Genetically Engineered Variant Of Bilin Bind Protein		Organism_scientific: Pieris Brassicae Organism_common: Large Cabbage White Organism_taxid: 7116 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Jm83 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pbbp21-Diga16
symmetry	Space Group: C 1 2 1	R_factor 0.185 R_Free 0.248
crystal cell	length a length b length c angle alpha angle beta angle gamma 75.052 63.988 39.452 90.00 91.53 90.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	DOG	enzyme
note	1LKE is a representative structure
related structures	by homologous chain: 1KXO, 1LNM
Gene Ontology	Chain Function Process Component A
Primary reference	Structural mechanism of specific ligand recognition by a lipocalin tailored for the complexation of digoxigenin., Korndorfer IP, Schlehuber S, Skerra A, J Mol Biol 2003 Jul 4;330(2):385-96. PMID:12823976

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (33 Kb) [Save to disk] Biological Unit Coordinates (1lke.pdb1.gz) 28 Kb LPC: Ligand-Protein Contacts for 1LKE CSU: Contacts of Structural Units for 1LKE Likely Quarternary Molecular Structure file(s) for 1LKE Structure Factors (100 Kb) Retrieve 1LKE in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1LKE from S2C, [Save to disk] Re-refined 1lke structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1LKE 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 1LKE

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 1LKE, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1lkea_, region A [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: [1lke_A] [1lke] SWISS-PROT database: [P09464] Domain organization of [BBP_PIEBR] by SWISSPFAM

Other resources with information on 1LKE

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

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Images from IMB Jena Image Library of Biological Macromolecules.

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