2BNZ	Dna Binding Protein Dna	date	Apr 06, 2005
title	Structural Basis For Cooperative Binding Of Ribbon-Helix-Hel Repressor To Inverted Dna Heptad Repeats
authors	W.A.Weihofen, A.Cicek, F.Pratto, J.C.Alonso, W.Saenger
compound		source
Molecule: Orf Omega Chain: A, B, C, D Fragment: Ribbon-Helix-Helix Domain, Residues 20-71 Synonym: Omega Transcriptional Repressor, Orf Omega' Engineered: Yes		Organism_scientific: Streptococcus Pyogenes Organism_taxid: 1314 Expression_system: Escherichia Coli Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet28a-Delta19omega Other_details: Omega Transcriptional Repressor Is Encoded B Psm19035 Of The Inc18 Family Of Plasmids;
Molecule: 5'-D(Gpapaptpcpapcpapapgp Tpgpaptptpapgpc)-3'; Chain: E, G Engineered: Yes Other_details: Sequence\: 5'- Gaa Tca Caa Gtg Att Agc -3', Oligonucleotide, First Strand, Inverted Dna Heptad Repeats Aatcac At -3'), Nucleotides G5 - G16, G18 And E18 Were Not		Synthetic: Yes Organism_scientific: Synthetic Construct Organism_taxid: 32630 Other_details: Inverted Repeats Occur In Promoter Regions P Genes Controlled By Omega Transcriptional Repressor, Plasmi Psm19035;
Molecule: 5'-D(Cptpapaptpcpapcptptp Gptpgpaptptpcpg)-3'; Chain: F, H Engineered: Yes Other_details: Sequence\: 5'- Cta Atc Act Tgt Gat Tcg -3', Oligonucleotide, Second Strand, Nucleotides H19 - H31 Were Modelled		Synthetic: Yes Organism_scientific: Synthetic Construct Organism_taxid: 32630 Other_details: Inverted Repeats Occur In Promoter Regions P Genes Controlled By Omega Transcriptional Repressor, Plasmi Psm19035
symmetry	Space Group: P 1 21 1	R_factor 0.225 R_Free 0.258
crystal cell	length a length b length c angle alpha angle beta angle gamma 75.991 42.505 103.727 90.00 107.17 90.00
method	X-Ray Diffraction	resolution	2.60 Å
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Structures of omega repressors bound to direct and inverted DNA repeats explain modulation of transcription., Weihofen WA, Cicek A, Pratto F, Alonso JC, Saenger W, Nucleic Acids Res. 2006 Mar 9;34(5):1450-8. Print 2006. PMID:16528102

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (57 Kb) [Save to disk] Biological Unit Coordinates (2bnz.pdb1.gz) 50 Kb CSU: Contacts of Structural Units for 2BNZ Likely Quarternary Molecular Structure file(s) for 2BNZ Structure Factors (140 Kb) Retrieve 2BNZ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2BNZ from S2C, [Save to disk] Re-refined 2bnz structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2BNZ 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 2BNZ

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 2BNZ, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2bnz_G] [2bnz_B] [2bnz_D] [2bnz_E] [2bnz_H] [2bnz_C] [2bnz_A] [2bnz] [2bnz_F] SWISS-PROT database: [Q57468] Domain organization of [Q57468_STRPY] by SWISSPFAM

Other resources with information on 2BNZ

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

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