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Crystal structure of the chitin-binding module (CBM18) of a chitinase-like protein from Hevea brasiliensis
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1Q9B PDB ENTRY 1Q9B
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7 291 11 mg/mL protein, 0.1 M MES, pH 7.0, 1.6 M ammonium sulfate, 4% 1,4-dioxane, VAPOR DIFFUSION, SITTING DROP, temperature 291K
Crystal Properties Matthews coefficient Solvent content 2.4 48.67
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 38.515 α = 90 b = 38.515 β = 90 c = 100.934 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 PIXEL DECTRIS PILATUS 6M 2012-06-07 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID29 0.9791 ESRF ID29
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 1.602 33.355 99.47 0.037 0.037 21.13 3.5 11176 11117 1 1 12.65
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 1.602 1.68 99.5 0.216 0.216 4.9 2.7 1500
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation 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 (All) 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 THROUGHOUT PDB ENTRY 1Q9B 1.602 33.355 1.36 11140 11067 530 99.34 0.185 0.1803 0.1786 0.1804 0.216 0.2113 RANDOM
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 15.823 f_angle_d 1.108 f_chiral_restr 0.033 f_bond_d 0.006 f_plane_restr 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 608 Nucleic Acid Atoms Solvent Atoms 85 Heterogen Atoms 18
Software Software Software Name Purpose HKL-2000 data collection PHASER phasing PHENIX refinement XDS data reduction SCALA data scaling