3HD3

High resolution crystal structure of cruzain bound to the vinyl sulfone inhibitor SMDC-256047


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.52910.1M Sodium HEPES pH 7.5, 2% PEG 400, 2.0M Ammonium sulfate, 30% Ethanol, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties
Matthews coefficientSolvent content
2.1843.49

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 44.687α = 90
b = 72.493β = 89.79
c = 60.93γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315rVertical focusing mirror2008-12-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL7-11.0SSRLBL7-1

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
11.7572.597.30.057257.4381773817711.5
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)
11.751.84900.137127.25147

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1.7560.9336240191897.150.144690.142970.17636RANDOM4.456
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]
0.370.04-0.01-0.35
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg38.64
r_dihedral_angle_4_deg20.45
r_dihedral_angle_3_deg10.268
r_dihedral_angle_1_deg6.137
r_scangle_it3.515
r_scbond_it2.238
r_angle_refined_deg1.588
r_mcangle_it1.355
r_angle_other_deg0.976
r_mcbond_it0.864
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg38.64
r_dihedral_angle_4_deg20.45
r_dihedral_angle_3_deg10.268
r_dihedral_angle_1_deg6.137
r_scangle_it3.515
r_scbond_it2.238
r_angle_refined_deg1.588
r_mcangle_it1.355
r_angle_other_deg0.976
r_mcbond_it0.864
r_mcbond_other0.284
r_chiral_restr0.1
r_bond_refined_d0.019
r_gen_planes_refined0.008
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3175
Nucleic Acid Atoms
Solvent Atoms395
Heterogen Atoms98

Software

Software
Software NamePurpose
Blu-Icedata collection
MOLREPphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling