2NOV	Isomerase	date	Oct 26, 2006
title	Breakage-Reunion Domain Of S.Pneumoniae Topo Iv: Crystal Str A Gram-Positive Quinolone Target
authors	I.Laponogov, D.A.Veselkov, M.K.Sohi, X.S.Pan, A.Achari, C.Yang, J.D.Ferrara, L.M.Fisher, M.R.Sanderson
compound		source
Molecule: Dna Topoisomerase 4 Subunit A Chain: A, B, C, D Fragment: 55-Kda N-Terminal Fragment Synonym: Topoisomerase Iv Subunit A Ec: 5.99.1.- Engineered: Yes		Organism_scientific: Streptococcus Pneumoniae Organism_taxid: 1313 Strain: 7785 Gene: Parc Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: B834(De3)Plyss Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet29a
symmetry	Space Group: I 2 2 2	R_factor 0.224 R_Free 0.276
crystal cell	length a length b length c angle alpha angle beta angle gamma 136.920 137.850 326.020 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.67 Å
ligand		enzyme	Isomerase E.C.5.99.1 BRENDA
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Breakage-Reunion Domain of Streptococcus pneumoniae Topoisomerase IV: Crystal Structure of a Gram-Positive Quinolone Target., Laponogov I, Veselkov DA, Sohi MK, Pan XS, Achari A, Yang C, Ferrara JD, Fisher LM, Sanderson MR, PLoS ONE. 2007 Mar 21;2:e301. PMID:17375187

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (277 Kb) [Save to disk] Biological Unit Coordinates (2nov.pdb1.gz) 137 Kb Biological Unit Coordinates (2nov.pdb2.gz) 137 Kb CSU: Contacts of Structural Units for 2NOV Likely Quarternary Molecular Structure file(s) for 2NOV Structure Factors (733 Kb) Retrieve 2NOV in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2NOV from S2C, [Save to disk] Re-refined 2nov structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2NOV 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 2NOV

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2NOV, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2nov_B] [2nov_C] [2nov_A] [2nov] [2nov_D] SWISS-PROT database: [P72525] Domain organization of [PARC_STRPN] by SWISSPFAM Domain found in 2NOV: [TOP4c ] by SMART

Other resources with information on 2NOV

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

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