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Class IV chitinase structure from Picea abies at 1.8A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1CNS Homology model of the Picea abies chitinase built on barley seed chitinase (PDB entry 1CNS)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 5.5 296 20% w/v polyethylene glycol 3000, 0.1M citrate, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 296K
Crystal Properties Matthews coefficient Solvent content 1.86 33.91
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 67.004 α = 90 b = 65.579 β = 90 c = 36.481 γ = 90
Symmetry Space Group P 21 21 2
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 ADSC QUANTUM 315r 2006-02-26 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID23-1 0.9998 ESRF ID23-1
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 1.8 50 97.4 0.078 13 14815
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) 1.8 1.9 88.5 0.481 3.1
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-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT Homology model of the Picea abies chitinase built on barley seed chitinase (PDB entry 1CNS) 1.8 50 14262 750 96.69 0.17749 0.17582 0.20993 0.2292 RANDOM 21.32
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] 0.32 0.35 -0.66
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 37.286 r_dihedral_angle_3_deg 14.354 r_dihedral_angle_1_deg 4.757 r_dihedral_angle_4_deg 4.523 r_scangle_it 4.166 r_scbond_it 2.812 r_mcangle_it 1.685 r_angle_refined_deg 1.267 r_mcbond_it 0.986 r_nbtor_refined 0.304
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 37.286 r_dihedral_angle_3_deg 14.354 r_dihedral_angle_1_deg 4.757 r_dihedral_angle_4_deg 4.523 r_scangle_it 4.166 r_scbond_it 2.812 r_mcangle_it 1.685 r_angle_refined_deg 1.267 r_mcbond_it 0.986 r_nbtor_refined 0.304 r_symmetry_vdw_refined 0.259 r_nbd_refined 0.221 r_symmetry_hbond_refined 0.175 r_xyhbond_nbd_refined 0.121 r_chiral_restr 0.092 r_bond_refined_d 0.014 r_gen_planes_refined 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1511 Nucleic Acid Atoms Solvent Atoms 91 Heterogen Atoms 13
Software Software Software Name Purpose ADSC data collection MOLREP phasing REFMAC refinement MOSFLM data reduction SCALA data scaling