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Crystal structure of recombinant Kunitz Type serine protease Inhibitor-1 from the Caribbean Sea anemone Stichodactyla helianthus in complex with bovine chymotrypsin
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1MTN PDB ENTRY 1MTN
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 8 293 0.2 M ammonium sulfate, 30% PEG8000, pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.21 44.23
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 199.706 α = 90 b = 199.706 β = 90 c = 54.572 γ = 120
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 MAR CCD 165 mm 2010-10-02 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X13 1.5 EMBL/DESY, HAMBURG X13
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 1.99 29.216 99.7 0.087 10.2 3.9 55522 55522
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 1.99 2.1 100 0.043 2.4 3.9
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (All) 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 PDB ENTRY 1MTN 2 22.508 1.97 55522 54651 1968 99.73 0.1913 0.1897 0.1818 0.2329 0.2286 RANDOM 48.4405
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] -0.439 -0.439 0.8779
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 12.832 f_angle_d 1.088 f_chiral_restr 0.071 f_bond_d 0.008 f_plane_restr 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6540 Nucleic Acid Atoms Solvent Atoms 553 Heterogen Atoms 35
Software Software Software Name Purpose PHENIX refinement PDB_EXTRACT data extraction DNA data collection MOSFLM data reduction SCALA data scaling MOLREP phasing