2GO2

Crystal structure of BbKI, a Kunitz-type kallikrein inhibitor


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.62938%(w/v) PEG 4000, 0.1 M sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.4950.51

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 46.701α = 90
b = 64.143β = 90
c = 59.244γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMAR scanner 345 mm platemirrors2004-04-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.5418

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
11.8726.4495.80.04432.88.51462822
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)
11.871.9791.70.20710.78.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONSADTHROUGHOUT1.8719.732138501385073495.660.167990.165790.20974RANDOM14.291
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]
-0.080.08
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.735
r_dihedral_angle_4_deg23.848
r_dihedral_angle_3_deg15.302
r_dihedral_angle_1_deg14.202
r_scangle_it5.376
r_scbond_it3.497
r_mcangle_it2.508
r_angle_refined_deg2.173
r_mcbond_it1.67
r_nbtor_refined0.307
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.735
r_dihedral_angle_4_deg23.848
r_dihedral_angle_3_deg15.302
r_dihedral_angle_1_deg14.202
r_scangle_it5.376
r_scbond_it3.497
r_mcangle_it2.508
r_angle_refined_deg2.173
r_mcbond_it1.67
r_nbtor_refined0.307
r_symmetry_vdw_refined0.223
r_nbd_refined0.21
r_xyhbond_nbd_refined0.2
r_symmetry_hbond_refined0.178
r_chiral_restr0.173
r_bond_refined_d0.03
r_gen_planes_refined0.011
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1260
Nucleic Acid Atoms
Solvent Atoms160
Heterogen Atoms8

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
CCP4data scaling
SHARPphasing