4AN1

PROLYL OLIGOPEPTIDASE FROM PORCINE BRAIN WITH A COVALENTLY BOUND INHIBITOR IC-4


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1QFSPDB ENTRY 1QFS

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
18.518-20% METHOXY-POLYETHYLENE GLYCOL (MPEG) 5K, 20 MM CA(OAC)2, 0.1 M TRIS PH 8.5, 15% GLYCEROL
Crystal Properties
Matthews coefficientSolvent content
2.544

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 70.5α = 90
b = 99β = 90
c = 109.4γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315rMIRRORS2007-03-23MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID29ESRFID29

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
11.97593.50.0913.13.556822-320.7
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)
11.91.9795.70.5623.6

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 REPLACEMENTTHROUGHOUTPDB ENTRY 1QFS1.974.3354481234193.260.16970.167720.21452RANDOM24.37
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]
-0.63-0.631.27
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.676
r_dihedral_angle_4_deg19.805
r_dihedral_angle_3_deg13.144
r_dihedral_angle_1_deg6.448
r_scangle_it4.027
r_scbond_it2.558
r_mcangle_it1.484
r_angle_refined_deg1.474
r_mcbond_it0.821
r_chiral_restr0.107
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.676
r_dihedral_angle_4_deg19.805
r_dihedral_angle_3_deg13.144
r_dihedral_angle_1_deg6.448
r_scangle_it4.027
r_scbond_it2.558
r_mcangle_it1.484
r_angle_refined_deg1.474
r_mcbond_it0.821
r_chiral_restr0.107
r_bond_refined_d0.016
r_gen_planes_refined0.008
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5701
Nucleic Acid Atoms
Solvent Atoms611
Heterogen Atoms50

Software

Software
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling