2ORP

Murine inducible nitric oxide synthase oxygenase domain (delta 114) 2-[4-(2-Imidazol-1-yl-6-methyl-pyrimidin-4-yl)-1-isobutyryl-piperazin-2-yl]-N-[2-(4-methoxy-phenyl)-ethyl]-acetamide complex


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1NOSPDB ENTRY 1NOS

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.7308CRYSTALS OF MURINE DELTA114 INOS WERE PREPARED IN THE PRESENCE OF IMIDAZOLE FOLLOWING THE PROCEDURES OF CRANE ET AL. (REFERENCE 1) AS FOLLOWS: THE 6 UL CRYSTALLIZATION DROPS CONTAINED 20 MG/ML MURINE DELTA114 INOS, 20 MM HEPES PH 7.6, 5 % GLYCEROL, 0.5 MM DTT, 6.8 % PEG-3350, 60 MM NA2SO3, AND 50 MM IMIDAZOLE/ MALATE BUFFER PH 4.7 WERE PLACED OVER A 1 ML RESERVOIR CONTAINING 13.6 % PEG-3350, 120 MM NA2SO3, AND 100 MM IMIDAZOLE/MALATE BUFFER PH 4.7. THESE CRYSTALS WERE SOAKED FOR 25 HOURS IN 5 UM 2-[4-(2-Imidazol-1-yl-6- methyl-pyrimidin-4-yl)-1-isobutyryl-piperazin-2-yl]-N- [2-(4-methoxy-phenyl)-ethyl]-acetamide, 14 % PEG-3350, 1 MM NAN3, 50 MM MES PH 6.5 AND 50 MM NA2SO3. THE, pH 4.70, VAPOR DIFFUSION, HANGING DROP, temperature 308K
Crystal Properties
Matthews coefficientSolvent content
2.4148.92

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 63.23α = 90
b = 73.75β = 90
c = 93.56γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMAR scanner 345 mm plate1998-04-09MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL7-11.08SSRLBL7-1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.9719.7595.30.095.43.62960421034120.9
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.972.0895.30.2892.53.1

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONFOURIER SYNTHESISTHROUGHOUTPDB ENTRY 1NOS1.9719.7522960421034117993.80.2180.2170.252RANDOM36.1
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
-5.56.85-1.34
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d20.6
c_scangle_it3.29
c_mcangle_it2.54
c_scbond_it2.15
c_mcbond_it1.55
c_angle_deg0.9
c_improper_angle_d0.79
c_bond_d0.007
c_angle_d
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2476
Nucleic Acid Atoms
Solvent Atoms201
Heterogen Atoms80

Software

Software
Software NamePurpose
Blu-Icedata collection
X-PLORmodel building
CNSrefinement
Blu-Icedata collection
MOSFLMdata reduction
CCP4data scaling
X-PLORphasing