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GH5-4 broad specificity endoglucanase from Hungateiclostridium cellulolyticum
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2WAB
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 4.2 293 A solution of protein at 1mM was incubated with 5mM cellohexose for 4 hours at room temperature. The mixture was screened using a TTP Labtech Mosquito and MRC SD-2 plates 200 nL protein 200 nL reservoir, 50 microliter total reservoir. Crystals formed in condition B6, 40% ethanol, 10% PEG1000, 0.1M phosphate citrate buffer pH 4.2. Crystals were exposed to vapor from 45% ethanol for 30 seconds prior to plunge cooling in liquid nitrogen.
Crystal Properties Matthews coefficient Solvent content 2.13 42.21
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 70.85 α = 90 b = 70.85 β = 90 c = 57.61 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 MARMOSAIC 300 mm CCD 2015-08-23 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 21-ID-F 0.97857 APS 21-ID-F
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) CC (Half) 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 1.4 30.176 99.98 0.05344 0.05772 0.02176 0.999 22.1 7 63716
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.4 1.45 100 0.4228 0.4578 0.1746 0.921 4.3 6.9
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 2wab 1.4 30.176 1.99 63716 1490 99.99 0.1213 0.1209 0.1213 0.1377 0.1392
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 14.083 f_angle_d 1.174 f_chiral_restr 0.085 f_bond_d 0.01 f_plane_restr 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2736 Nucleic Acid Atoms Solvent Atoms 446 Heterogen Atoms 81
Software Software Software Name Purpose PHENIX refinement XDS data reduction XSCALE data scaling PHASER phasing