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- PDB-1oo6: Nitroreductase from e-coli in complex with the dinitrobenzamide p... -

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Basic information

Entry
Database: PDB / ID: 1oo6
TitleNitroreductase from e-coli in complex with the dinitrobenzamide prodrug SN23862
ComponentsOxygen-insensitive NAD(P)H nitroreductase
KeywordsOXIDOREDUCTASE / NAD(P)H-QUINONE REDUCTASE / FMN / NITROREDUCTASE / FLAVOPROTEIN / SN23862
Function / homology
Function and homology information


oxidoreductase activity, acting on other nitrogenous compounds as donors, with NAD or NADP as acceptor / 6,7-dihydropteridine reductase / 2,4,6-trinitrotoluene catabolic process / 6,7-dihydropteridine reductase activity / NAD(P)H dehydrogenase (quinone) activity / Oxidoreductases / FMN binding / protein homodimerization activity / identical protein binding / membrane / cytosol
Similarity search - Function
Oxygen-insensitive NAD(P)H nitroreductase NfsB-like / : / NADH Oxidase / NADH Oxidase / Nitroreductase / Nitroreductase family / Nitroreductase-like / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
FLAVIN MONONUCLEOTIDE / Chem-SN2 / Oxygen-insensitive NAD(P)H nitroreductase
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2 Å
AuthorsJohansson, E. / Parkinson, G.N. / Denny, W.A. / Neidle, S.
CitationJournal: J.Med.Chem. / Year: 2003
Title: Studies on the Nitroreductase Prodrug-Activating System. Crystal Structures of Complexes with the Inhibitor Dicoumarol and Dinitrobenzamide Prodrugs and of the Enzyme Active Form
Authors: Johansson, E. / Parkinson, G.N. / Denny, W.A. / Neidle, S.
History
DepositionMar 3, 2003Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 8, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 16, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _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: Oxygen-insensitive NAD(P)H nitroreductase
B: Oxygen-insensitive NAD(P)H nitroreductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)49,4896
Polymers47,8742
Non-polymers1,6154
Water3,243180
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area10350 Å2
ΔGint-64 kcal/mol
Surface area16720 Å2
MethodPISA
Unit cell
Length a, b, c (Å)57.690, 57.690, 266.670
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number92
Space group name H-MP41212

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Components

#1: Protein Oxygen-insensitive NAD(P)H nitroreductase / FMN-DEPENDENT NITROREDUCTASE / Dihydropteridine reductase


Mass: 23937.182 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Species (production host): Escherichia coli / Production host: Escherichia coli K12 (bacteria) / Strain (production host): K12 / References: UniProt: P38489, EC: 1.6.99.7
#2: Chemical ChemComp-FMN / FLAVIN MONONUCLEOTIDE / RIBOFLAVIN MONOPHOSPHATE


Mass: 456.344 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C17H21N4O9P
#3: Chemical ChemComp-SN2 / 5-[BIS-2(CHLORO-ETHYL)-AMINO]-2,4-DINTRO-BENZAMIDE


Mass: 351.143 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C11H12Cl2N4O5
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 180 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.72 Å3/Da / Density % sol: 42 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 4.6
Details: PEG 4000 (25%-29%), 0.1 mM sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 97 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-1 / Wavelength: 0.93 Å
DetectorType: MARRESEARCH / Detector: CCD / Date: May 1, 2001
RadiationMonochromator: germanium 220 / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.93 Å / Relative weight: 1
ReflectionResolution: 2→20 Å / Num. all: 23339 / Num. obs: 23339 / % possible obs: 73.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Biso Wilson estimate: 11.7 Å2 / Rmerge(I) obs: 0.067 / Net I/σ(I): 20
Reflection shellResolution: 2→2.07 Å / Rmerge(I) obs: 0.246 / Mean I/σ(I) obs: 6 / Num. unique all: 2256 / % possible all: 73.9

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Processing

Software
NameVersionClassification
CNS1refinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1DS7

1ds7


Resolution: 2→19.58 Å / Rfactor Rfree error: 0.008 / Data cutoff high absF: 213282.24 / Data cutoff high rms absF: 213282.24 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.286 1373 5.9 %RANDOM
Rwork0.231 ---
all0.234 23282 --
obs0.231 23282 73.8 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 12.5108 Å2 / ksol: 0.264885 e/Å3
Displacement parametersBiso mean: 27.4 Å2
Baniso -1Baniso -2Baniso -3
1--0.27 Å20 Å20 Å2
2---0.27 Å20 Å2
3---0.55 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.35 Å0.27 Å
Luzzati d res low-5 Å
Luzzati sigma a0.23 Å0.19 Å
Refinement stepCycle: LAST / Resolution: 2→19.58 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3370 0 106 180 3656
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.1
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d24.1
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d1.14
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it4.111.5
X-RAY DIFFRACTIONc_mcangle_it6.382
X-RAY DIFFRACTIONc_scbond_it6.252
X-RAY DIFFRACTIONc_scangle_it8.932.5
LS refinement shellResolution: 2→2.13 Å / Rfactor Rfree error: 0.022 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.319 207 5.7 %
Rwork0.253 3437 -
obs--70.9 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1FMN.PARAMWATER_PICK.MTF_1
X-RAY DIFFRACTION2PARAM11.WAT
X-RAY DIFFRACTION3PARHCSDX.PRO_1
X-RAY DIFFRACTION4CREATE_SN23862.PARAM

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