2Q6F

Crystal structure of infectious bronchitis virus (IBV) main protease in complex with a Michael acceptor inhibitor N3


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2Q6DPDB ENTRY 2Q6D

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.529120% PEG10000, 0.1M HEPES pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties
Matthews coefficientSolvent content
2.5852.29

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 53.175α = 111.06
b = 54.502β = 104.31
c = 66.719γ = 91.33
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298IMAGE PLATERIGAKU RAXIS IV++2006-12-08MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU MICROMAX-0071.5418

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
125094.20.0413.942883
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)
122.0782.60.2255.13.33787

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)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 DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY 2Q6D2504547342003423192.40.2180.2160.242Random
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]
RMS Deviations
KeyRefinement Restraint Deviation
c_angle_d1.75
c_bond_d0.011
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4620
Nucleic Acid Atoms
Solvent Atoms419
Heterogen Atoms

Software

Software
Software NamePurpose
HKL-2000data collection
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing