3U43	Protein Binding	date	Oct 07, 2011
title	Crystal Structure Of The Colicin E2 Dnase-Im2 Complex
authors	J.A.Wojdyla, C.Kleanthous
compound		source
Molecule: Colicin-E2 Immunity Protein Chain: A Synonym: Imme2, Microcin-E2 Immunity Protein Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Imm, Ceib Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 (De3) Plyss Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet21d
Molecule: Colicin-E2 Chain: B Fragment: Dnase Domain (Unp Residues 449-581) Ec: 3.1.-.- Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Col, Ceab Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 (De3) Plyss Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet21d
symmetry	Space Group: P 21 21 2	R_factor 0.162 R_Free 0.203
crystal cell	length a length b length c angle alpha angle beta angle gamma 121.814 53.277 32.785 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.72 Å
ligand	CA, ZN	enzyme	Hydrolase E.C.3.1 BRENDA
Gene Ontology	Chain Function Process Component A B
Primary reference	Structure of the Ultra-High-Affinity Colicin E2 DNase-Im2 Complex., Wojdyla JA, Fleishman SJ, Baker D, Kleanthous C, J Mol Biol. 2012 Mar 16;417(1-2):79-94. Epub 2012 Jan 27. PMID:22306467

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (49 Kb) [Save to disk] Biological Unit Coordinates (3u43.pdb1.gz) 44 Kb Biological Unit Coordinates (3u43.pdb2.gz) 44 Kb LPC: Ligand-Protein Contacts for 3U43 CSU: Contacts of Structural Units for 3U43 Structure Factors (1123 Kb) Retrieve 3U43 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3U43 from S2C, [Save to disk] Re-refined 3u43 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3U43 in 3D

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Visual 3D analysis of 3U43

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 3U43, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3u43_A] [3u43] [3u43_B] SWISS-PROT database: Domain organization of by SWISSPFAM Domain found in 3U43: [HNHc ] by SMART

Other resources with information on 3U43

Community annotation for 3U43 at PDBWiki (http://pdbwiki.org)

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