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The xylanase TA from Thermoascus aurantiacus utilizes arabinose decorations of xylan as significant substrate specificity determinants.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1I1X PDB ENTRY 1I1X
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 13.5% PEG 6K, 2.5MM FAX2, 4MG/ML TA PROTEIN.
Crystal Properties Matthews coefficient Solvent content 2.1 41
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 88.224 α = 90 b = 49.462 β = 125.38 c = 77.384 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 IMAGE PLATE RIGAKU RAXIS IV 2004-02-26 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU
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 1.6 20.45 95.8 0.03 25.12 2.64 34409 12.1
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 1.6 1.61 88 0.07 9.31 2.44
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 Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1I1X 1.6 63.12 34409 1689 95.4 0.117 0.115 0.147 RANDOM 7.6
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] 0.095 0.005 -0.037 -0.053
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.519 r_dihedral_angle_4_deg 19.362 r_dihedral_angle_3_deg 11.513 r_dihedral_angle_1_deg 6.181 r_scangle_it 2.473 r_scbond_it 1.89 r_angle_refined_deg 1.409 r_mcangle_it 0.979 r_mcbond_it 0.774 r_nbd_refined 0.232
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.519 r_dihedral_angle_4_deg 19.362 r_dihedral_angle_3_deg 11.513 r_dihedral_angle_1_deg 6.181 r_scangle_it 2.473 r_scbond_it 1.89 r_angle_refined_deg 1.409 r_mcangle_it 0.979 r_mcbond_it 0.774 r_nbd_refined 0.232 r_nbtor_refined 0.179 r_symmetry_vdw_refined 0.166 r_xyhbond_nbd_refined 0.163 r_symmetry_hbond_refined 0.154 r_chiral_restr 0.078 r_bond_refined_d 0.011 r_gen_planes_refined 0.006 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_other r_nbtor_other r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_mcangle_other r_scbond_other r_scangle_other r_long_range_B_refined r_long_range_B_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2308 Nucleic Acid Atoms Solvent Atoms 596 Heterogen Atoms 41
Software Software Software Name Purpose REFMAC refinement MOSFLM data reduction SCALA data scaling MOLREP phasing