2OC1

Structure of the HCV NS3/4A Protease Inhibitor CVS4819


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.6277The protein (NS3 complexed with KK-NS4a(21-39)-KK peptide) was at 12-15 mg/ml in 15 mM MES, pH 6.5 1 M NaCl 20 mM b-mercaptoethanol. Hanging Drops were formed by mixing 4:l protein solution with 4:l {0.75-1.0 M NaCl 0.1M Na/K phosphate 0.1 M Mes, pH 5.8-6.1 20 mM b -mercaptoethanol} The drop was equilibrated the drops over 1 ml {(1.25-1.50 M) NaCl - 0.1M Na/K phosphate 0.1 M Mes, pH 5.6-5.8, 20 mM b-mercaptoethanol} , VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
3.867.64

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 222.936α = 90
b = 222.936β = 90
c = 75.158γ = 120
Symmetry
Space GroupH 3 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU2001.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym 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
12.75099.70.0523.33.61989719837136.1
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.72.899.80.4133.33.61970

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (I)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONFOURIER SYNTHESIS2O8M2.781198371797685890.60.1890.259
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
x_angle_deg1.79
x_improper_angle_d1.29
x_bond_d0.008
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2736
Nucleic Acid Atoms
Solvent Atoms98
Heterogen Atoms47

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
X-PLORmodel building
X-PLORrefinement
X-PLORphasing