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2.0 ANGSTROM STRUCTURE OF INTACT ALPHA-1-ANTITRYPSIN: A CANONICAL TEMPLATE FOR ACTIVE SERPINS
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1PSI THERMOSTABLE VARIANT ALPHA1-ANTITRYPSIN (PDB ENTRY 1PSI)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6 24% PEG 4000, 0.2 M SODIUM ACETATE, 0.1M TRIS-HCL PH 6.0, 2MM FESO4.7H20
Crystal Properties Matthews coefficient Solvent content 2.6 37.2
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 114.68 α = 90 b = 39.26 β = 104.21 c = 90.27 γ = 90
Symmetry Space Group C 1 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD MARRESEARCH MIRRORS 1998-09-09 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SRS BEAMLINE PX9.6 SRS PX9.6
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) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 2 25 93.6 0.079 0.067 5.9 3.3 25057 2 29.41
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) Redundancy Number Unique Reflections (All) 1 2 2.05 95.2 0.514 0.415 1.6 2.4
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) 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) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE THERMOSTABLE VARIANT ALPHA1-ANTITRYPSIN (PDB ENTRY 1PSI) 2 25 25039 1271 93.6 0.231 0.231 0.2339 0.266 0.2338 RANDOM 38.38
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] -4.094 -6.005 0.601 3.493
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 24.95182 c_mcangle_it 4.732 c_mcbond_it 3.502 c_scangle_it 3.453 c_scbond_it 2.219 c_angle_deg 1.30665 c_improper_angle_d 1.23128 c_bond_d 0.006917 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 24.95182 c_mcangle_it 4.732 c_mcbond_it 3.502 c_scangle_it 3.453 c_scbond_it 2.219 c_angle_deg 1.30665 c_improper_angle_d 1.23128 c_bond_d 0.006917 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2956 Nucleic Acid Atoms Solvent Atoms 106 Heterogen Atoms
Software Software Software Name Purpose CNS refinement MOSFLM data reduction SCALA data scaling CNS phasing