3I1U

Carboxypeptidase A Inhibited by a Thiirane Mechanism-Based inactivator


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP729120% PEG 3350, 0.2M AMMONIUM CHLORIDE, 0.02M TRIS, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties
Matthews coefficientSolvent content
1.9737.72

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 42.319α = 90
b = 57.504β = 99.14
c = 57.08γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMAR CCD 165 mmmirrors2008-12-23MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONEMBL/DESY, HAMBURG BEAMLINE X130.8123EMBL/DESY, HAMBURGX13

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
11.3857.54496.60.0680.068206.15518053703229.3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.381.4677.80.3790.3791.85.36298

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (I)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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 2CTB1.39120.54115259053692110298.870.1480.1480.162RANDOM9.564
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]
0.11-0.09-0.190.05
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.444
r_dihedral_angle_4_deg16.739
r_dihedral_angle_3_deg10.91
r_dihedral_angle_1_deg5.571
r_scangle_it2.006
r_scbond_it1.383
r_angle_refined_deg1.137
r_mcangle_it0.837
r_mcbond_it0.548
r_nbtor_refined0.312
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.444
r_dihedral_angle_4_deg16.739
r_dihedral_angle_3_deg10.91
r_dihedral_angle_1_deg5.571
r_scangle_it2.006
r_scbond_it1.383
r_angle_refined_deg1.137
r_mcangle_it0.837
r_mcbond_it0.548
r_nbtor_refined0.312
r_nbd_refined0.204
r_symmetry_vdw_refined0.191
r_symmetry_hbond_refined0.104
r_chiral_restr0.078
r_xyhbond_nbd_refined0.078
r_bond_refined_d0.008
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2403
Nucleic Acid Atoms
Solvent Atoms323
Heterogen Atoms57

Software

Software
Software NamePurpose
SCALAdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
MAR345dtbdata collection
MOSFLMdata reduction