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Crystal Structure of the complex of xylanase-alpha-amylase inhibitor Protein (XAIP-I) with trehalose at 1.87 A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3HU7
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.2 298 0.1M ammonium sulphate, 20% PEG 6000, 0.1M sodium acetate, 20mM phosphate buffer, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.19 43.74
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 42.238 α = 90 b = 64.677 β = 102.33 c = 48.852 γ = 90
Symmetry Space Group P 1 21 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 77 CCD MARRESEARCH mirror 2010-05-13 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE BM14 0.97 ESRF BM14
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 1.87 47.73 99.4 0.063 39.5 20087 19.9
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.87 1.9 96.5 0.271 5.1
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) 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 3HU7 1.87 47.73 20068 20068 1084 99.57 0.18673 0.18687 0.18559 0.1858 0.21073 0.2127 RANDOM 25.741
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] -0.7 0.33 0.69 0.15
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 37.544 r_dihedral_angle_4_deg 15.165 r_dihedral_angle_3_deg 14.587 r_dihedral_angle_1_deg 3.83 r_scangle_it 3.407 r_mcangle_it 2.822 r_scbond_it 2.413 r_angle_refined_deg 1.792 r_mcbond_it 1.661 r_chiral_restr 0.133
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 37.544 r_dihedral_angle_4_deg 15.165 r_dihedral_angle_3_deg 14.587 r_dihedral_angle_1_deg 3.83 r_scangle_it 3.407 r_mcangle_it 2.822 r_scbond_it 2.413 r_angle_refined_deg 1.792 r_mcbond_it 1.661 r_chiral_restr 0.133 r_bond_refined_d 0.026 r_gen_planes_refined 0.016 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_refined r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_refined r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_refined r_symmetry_vdw_other r_symmetry_hbond_refined r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2109 Nucleic Acid Atoms Solvent Atoms 241 Heterogen Atoms 40
Software Software Software Name Purpose HKL-2000 data collection AMoRE phasing REFMAC refinement DENZO data reduction SCALEPACK data scaling