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Crystal structure of the human CARBOXYPEPTIDASE A1 in complex with the PHOSPHINIC INHIBITOR Acetyl-Tyr-Ala-Y(PO2CH2)-homoPhe-OH
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3KGQ
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6 283 1:1 (v:v) of hCPA1/8
complex at 16.1 mg/mL
and a reservoir solution
of 20% w/v PEG3350,
0.2 M MgCl 2 , 0.1 M
HEPES, pH 6.0.
Crystal Properties Matthews coefficient Solvent content 2.19 43.78
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 46.121 α = 90 b = 84.109 β = 90 c = 158.195 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 173 PIXEL DECTRIS PILATUS3 6M 2013-06-09 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALBA BEAMLINE XALOC 0.9794 ALBA XALOC
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 1.72 40.451 99.94 0.099 1.33 7.4 66309
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.72 1.7446 0.429
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 3KGQ 1.72 40.44 1.33 66309 3363 99.94 0.1595 0.1582 0.1594 0.1833 0.183
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 Key Refinement Restraint Deviation f_dihedral_angle_d 15.395 f_angle_d 1.145 f_chiral_restr 0.051 f_bond_d 0.007 f_plane_restr 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4935 Nucleic Acid Atoms Solvent Atoms 359 Heterogen Atoms
Software Software Software Name Purpose PHENIX refinement MOLREP phasing SCALA data scaling XDS data reduction