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- PDB-4hxz: Pyrrolopyrimidine inhibitors of dna gyrase b and topoisomerase iv... -

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Basic information

Entry
Database: PDB / ID: 4hxz
TitlePyrrolopyrimidine inhibitors of dna gyrase b and topoisomerase iv, part i: structure guided discovery and optimization of dual targeting agents with potent, broad-spectrum enzymatic activity.
ComponentsTopoisomerase IV, subunit B
Keywordsisomerase/isomerase inhibitor / ATP-binding / Nucleotide-binding / Topoisomerase / ATP-binding domain / isomerase-isomerase inhibitor complex
Function / homology
Function and homology information


DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity / DNA topoisomerase (ATP-hydrolysing) / DNA topological change / chromosome segregation / chromosome / DNA binding / ATP binding / metal ion binding
Similarity search - Function
DNA topoisomerase IV, subunit B, Gram-negative / DNA gyrase B subunit, C-terminal / DNA gyrase B subunit, carboxyl terminus / DNA topoisomerase, type IIA, subunit B, domain 2 / DNA gyrase B / DNA topoisomerase, type IIA / DNA topoisomerase, type IIA, conserved site / DNA topoisomerase II signature. / TopoisomeraseII / DNA topoisomerase, type IIA, subunit B, C-terminal ...DNA topoisomerase IV, subunit B, Gram-negative / DNA gyrase B subunit, C-terminal / DNA gyrase B subunit, carboxyl terminus / DNA topoisomerase, type IIA, subunit B, domain 2 / DNA gyrase B / DNA topoisomerase, type IIA / DNA topoisomerase, type IIA, conserved site / DNA topoisomerase II signature. / TopoisomeraseII / DNA topoisomerase, type IIA, subunit B, C-terminal / Toprim domain / DNA topoisomerase, type IIA-like domain superfamily / Ribosomal Protein S5; domain 2 - #10 / Toprim domain profile. / TOPRIM domain / Ribosomal Protein S5; domain 2 / Histidine kinase-like ATPase, C-terminal domain / Heat Shock Protein 90 / Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase / Histidine kinase-like ATPases / Histidine kinase/HSP90-like ATPase superfamily / Ribosomal protein S5 domain 2-type fold, subgroup / Ribosomal protein S5 domain 2-type fold / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
Chem-19Y / DNA topoisomerase 4 subunit B / :
Similarity search - Component
Biological speciesFrancisella tularensis subsp. holarctica (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.7 Å
AuthorsBensen, D.C. / Creighton, C.J. / Kwan, B. / Tari, L.W.
CitationJournal: Bioorg.Med.Chem.Lett. / Year: 2013
Title: Pyrrolopyrimidine inhibitors of DNA gyrase B (GyrB) and topoisomerase IV (ParE). Part I: Structure guided discovery and optimization of dual targeting agents with potent, broad-spectrum enzymatic activity.
Authors: Tari, L.W. / Trzoss, M. / Bensen, D.C. / Li, X. / Chen, Z. / Lam, T. / Zhang, J. / Creighton, C.J. / Cunningham, M.L. / Kwan, B. / Stidham, M. / Shaw, K.J. / Lightstone, F.C. / Wong, S.E. / ...Authors: Tari, L.W. / Trzoss, M. / Bensen, D.C. / Li, X. / Chen, Z. / Lam, T. / Zhang, J. / Creighton, C.J. / Cunningham, M.L. / Kwan, B. / Stidham, M. / Shaw, K.J. / Lightstone, F.C. / Wong, S.E. / Nguyen, T.B. / Nix, J. / Finn, J.
History
DepositionNov 12, 2012Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 13, 2013Provider: repository / Type: Initial release
Revision 1.1Feb 27, 2013Group: Database references
Revision 1.2Jan 24, 2018Group: Structure summary / Category: audit_author / Item: _audit_author.name
Revision 1.3Feb 28, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Topoisomerase IV, subunit B
B: Topoisomerase IV, subunit B
hetero molecules


Theoretical massNumber of molelcules
Total (without water)88,5304
Polymers87,9022
Non-polymers6292
Water3,099172
1
A: Topoisomerase IV, subunit B
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,2652
Polymers43,9511
Non-polymers3141
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: Topoisomerase IV, subunit B
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,2652
Polymers43,9511
Non-polymers3141
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)44.117, 162.874, 77.407
Angle α, β, γ (deg.)90.00, 92.71, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein Topoisomerase IV, subunit B


Mass: 43950.766 Da / Num. of mol.: 2 / Mutation: unp residues 1002-1383
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Francisella tularensis subsp. holarctica (bacteria)
Strain: LVS / Gene: DNA topoisomerase IV subunit B ParE, FTL_1726 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)
References: UniProt: Q2A1P5, UniProt: A0A0J9WZF0*PLUS, EC: 5.99.1.3
#2: Chemical ChemComp-19Y / 6-ethyl-4-methoxy-2-(pyridin-3-ylsulfanyl)-7H-pyrrolo[2,3-d]pyrimidine-5-carbaldehyde


Mass: 314.362 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C15H14N4O2S
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 172 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsTHIS RESIDUES REPRESENTS A NATURAL VARIANT

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 3.16 Å3/Da / Density % sol: 61.08 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 5.4
Details: 10% PEG 4000, 10% isopropanol, 100 mM citrate, pH 5.4, VAPOR DIFFUSION, HANGING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ALS / Beamline: 4.2.2
DetectorType: NOIR-1 / Detector: CCD / Date: Aug 13, 2008
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthRelative weight: 1
ReflectionResolution: 2.7→44.43 Å / Num. all: 79243 / Num. obs: 29988 / % possible obs: 97 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0
Reflection shellResolution: 2.7→2.8 Å / % possible all: 96.9

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Processing

SoftwareName: REFMAC / Version: 5.6.0117 / Classification: refinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.7→40.72 Å / Cor.coef. Fo:Fc: 0.904 / Cor.coef. Fo:Fc free: 0.843 / SU B: 13.97 / SU ML: 0.288 / Cross valid method: THROUGHOUT / ESU R: 0.621 / ESU R Free: 0.371 / Stereochemistry target values: MAXIMUM LIKELIHOOD
RfactorNum. reflection% reflectionSelection details
Rfree0.30342 1466 5 %RANDOM
Rwork0.24012 ---
all0.34 72111 --
obs0.24347 27606 97.02 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parametersBiso mean: 43.644 Å2
Baniso -1Baniso -2Baniso -3
1-0.01 Å20 Å2-0.02 Å2
2--0.08 Å20 Å2
3----0.09 Å2
Refinement stepCycle: LAST / Resolution: 2.7→40.72 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5144 0 44 172 5360
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.010.025286
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.4811.9687142
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg7.0525642
X-RAY DIFFRACTIONr_dihedral_angle_2_deg39.04325.975236
X-RAY DIFFRACTIONr_dihedral_angle_3_deg19.53415968
X-RAY DIFFRACTIONr_dihedral_angle_4_deg16.551512
X-RAY DIFFRACTIONr_chiral_restr0.1050.2808
X-RAY DIFFRACTIONr_gen_planes_refined0.0070.0213896
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it
X-RAY DIFFRACTIONr_scbond_it
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.7→2.77 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.397 104 -
Rwork0.34 2055 -
obs--96.51 %

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