3QNJ	Chaperone Antimicrobial Protein	date	Feb 08, 2011
title	Crystal Structure Of The Substrate Binding Domain Of E.Coli Complex With The Antimicrobial Peptide Oncocin
authors	M.Zahn, N.Straeter
compound		source
Molecule: Chaperone Protein Dnak Chain: A, B Fragment: Unp Residues 389-607 Synonym: Hsp70, Heat Shock 70 Kda Protein, Heat Shock Prote Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 83333 Strain: K12 Gene: Dnak, Grop, Grpf, Seg Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Rosetta(De3)Plyss Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet15b
Molecule: Antimicrobial Peptide Oncocin Chain: C, D Engineered: Yes		Synthetic: Yes Organism_scientific: Oncopeltus Fasciatus Organism_taxid: 7536 Other_details: This Sequence Is Derived From Oncopeltus Fas And Optimized For The Treatment Of Gram-Negative Pathogens
symmetry	Space Group: P 21 21 2	R_factor 0.211 R_Free 0.284
crystal cell	length a length b length c angle alpha angle beta angle gamma 77.664 161.137 44.629 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.28 Å
ligand	SO4	enzyme
Primary reference	Rational Design of Oncocin Derivatives with Superior Protease Stabilities and Antibacterial Activities Based on the High-Resolution Structure of the Oncocin-DnaK Complex., Knappe D, Zahn M, Sauer U, Schiffer G, Strater N, Hoffmann R, Chembiochem. 2011 Mar 8. doi: 10.1002/cbic.201000792. PMID:21387510

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (151 Kb) [Save to disk] Biological Unit Coordinates (3qnj.pdb1.gz) 70 Kb Biological Unit Coordinates (3qnj.pdb2.gz) 73 Kb Biological Unit Coordinates (3qnj.pdb3.gz) 142 Kb LPC: Ligand-Protein Contacts for 3QNJ CSU: Contacts of Structural Units for 3QNJ Structure Factors (1304 Kb) Retrieve 3QNJ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3QNJ from S2C, [Save to disk] Re-refined 3qnj structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3QNJ 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 3QNJ

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 3QNJ, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3qnj] [3qnj_A] [3qnj_C] [3qnj_B] [3qnj_D] SWISS-PROT database: Domain organization of by SWISSPFAM

Other resources with information on 3QNJ

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

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