2NS7	Transcription	date	Nov 03, 2006
title	How An In Vitro Selected Peptide Mimics The Antibiotic Tetra Induce Tet Repressor
authors	S.R.Luckner, M.Klotzsche, C.Berens, W.Hillen, Y.A.Muller
compound		source
Molecule: Tetracycline Repressor Protein Chain: A, B, C, D Engineered: Yes Mutation: Yes Other_details: Residues 1-187 Are From Variant B, Residues Are From Variant D		Organism_scientific: Escherichia Coli Organism_taxid: 83333 Strain: K12 Gene: Tetr Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Rb791 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pwh610
symmetry	Space Group: P 61 2 2	R_factor 0.230 R_Free 0.277
crystal cell	length a length b length c angle alpha angle beta angle gamma 107.910 107.910 303.940 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.40 Å
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	How an agonist peptide mimics the antibiotic tetracycline to induce Tet-repressor., Luckner SR, Klotzsche M, Berens C, Hillen W, Muller YA, J Mol Biol. 2007 May 4;368(3):780-90. Epub 2007 Feb 22. PMID:17374541

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (123 Kb) [Save to disk] Biological Unit Coordinates (2ns7.pdb1.gz) 61 Kb Biological Unit Coordinates (2ns7.pdb2.gz) 57 Kb CSU: Contacts of Structural Units for 2NS7 Likely Quarternary Molecular Structure file(s) for 2NS7 Structure Factors (312 Kb) Retrieve 2NS7 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2NS7 from S2C, [Save to disk] Re-refined 2ns7 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2NS7 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 2NS7

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 2NS7, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2ns7_C] [2ns7_A] [2ns7_B] [2ns7_D] [2ns7] SWISS-PROT database: [P04483] [P0ACT4] Domain organization of [TETR2_ECOLX] [TETR4_ECOLX] by SWISSPFAM

Other resources with information on 2NS7

Community annotation for 2NS7 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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