2H1U

Porcine pancreatic elastase complexed with MetPheLeuGlu at pH 5.0


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3EST 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP529425mm sodium sulphate, 25mm sodium acetate (ph 5.0), 25mg/ml PPE, 17.5mg/ml MFLE , VAPOR DIFFUSION, HANGING DROP, temperature 294K
Crystal Properties
Matthews coefficientSolvent content
2.0239.07

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 50.084α = 90
b = 57.57β = 90
c = 74.146γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray127IMAGE PLATERIGAKU RAXIS IVOSMIC mirrors2005-10-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU MICROMAX-007

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
11.645.4596.10.04221.33.62774916.1
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)
1.61.6991.90.2084.83.23793

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)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 REPLACEMENTTHROUGHOUT3EST1.619.542774926295141995.390.183630.182470.2049RANDOM21.611
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]
0.86-0.29-0.57
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.183
r_dihedral_angle_4_deg21.269
r_dihedral_angle_3_deg11.511
r_dihedral_angle_1_deg6.037
r_scangle_it2.876
r_scbond_it2.122
r_angle_refined_deg1.413
r_mcangle_it1.411
r_mcbond_it0.889
r_nbtor_refined0.31
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.183
r_dihedral_angle_4_deg21.269
r_dihedral_angle_3_deg11.511
r_dihedral_angle_1_deg6.037
r_scangle_it2.876
r_scbond_it2.122
r_angle_refined_deg1.413
r_mcangle_it1.411
r_mcbond_it0.889
r_nbtor_refined0.31
r_nbd_refined0.235
r_symmetry_vdw_refined0.2
r_symmetry_hbond_refined0.17
r_metal_ion_refined0.129
r_xyhbond_nbd_refined0.109
r_chiral_restr0.101
r_bond_refined_d0.012
r_gen_planes_refined0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1812
Nucleic Acid Atoms
Solvent Atoms118
Heterogen Atoms6

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
CCP4data scaling