6R59

Crystal structure of PPEP-1(E143A/Y178F) in complex with substrate peptide Ac-EVAPPVP-NH2


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP293.151.5 microl 12 mg per ml rPPEP-1 E143A Y178F with 6 mM substrate peptide in 20 mM Tris pH 7.5, 200 mM NaCl was mixed with 1.5 microl precipitant solution containing: 100 mM Tris pH 9.0, 2.1 M ammonium phosphate dibasic. Reservoir volume: 200 microl
Crystal Properties
Matthews coefficientSolvent content
2.1542.66

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 37.11α = 90
b = 42.95β = 96.6
c = 122.24γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray80PIXELDECTRIS PILATUS 6M2016-11-11MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)1PETRA III, EMBL c/o DESYP13 (MX1)

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.6540.4929612.72.644656
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.651.71

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE5A0P1.6540.4921.3644656192396.190.19260.19140.2195
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d9.173
f_angle_d0.734
f_chiral_restr0.048
f_bond_d0.008
f_plane_restr0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3119
Nucleic Acid Atoms
Solvent Atoms268
Heterogen Atoms2

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHENIXphasing