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THE 1.76 A RESOLUTION CRYSTAL STRUCTURE OF GLYCOGEN PHOSPHORYLASE B COMPLEXED WITH GLUCOSE AND CP320626, A POTENTIAL ANTIDIABETIC DRUG
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1C50
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6.7 PHOSPHORYLASE B-GLC-CP320626 COMPLEX WAS CO-CRYSTALLISED UNDER CONDITIONS SIMILAR TO THOSE DESCRIBED BY OIKONOMAKOS ET AL., (2000) STRUCTURE 8, 575-584., pH 6.70
Crystal Properties Matthews coefficient Solvent content 2.48 48
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 128.966 α = 90 b = 128.966 β = 90 c = 116.186 γ = 90
Symmetry Space Group P 43 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 287 IMAGE PLATE MAR scanner 180 mm plate 2000-03-03 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X31 EMBL/DESY, HAMBURG X31
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 1.76 26.25 95.8 0.054 15.41 3.7 93061
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 1.76 1.79 94.8 0.696 2.33
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 FREE R-VALUE 1C50 1.76 26.25 92971 4663 95.8 0.211 0.211 0.235 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 x_dihedral_angle_d 24.7 x_mcangle_it 2 x_scangle_it 2 x_mcbond_it 1.5 x_scbond_it 1.5 x_angle_deg 1.25 x_improper_angle_d 0.68 x_bond_d 0.007 x_bond_d_na x_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 24.7 x_mcangle_it 2 x_scangle_it 2 x_mcbond_it 1.5 x_scbond_it 1.5 x_angle_deg 1.25 x_improper_angle_d 0.68 x_bond_d 0.007 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d_na x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6591 Nucleic Acid Atoms Solvent Atoms 355 Heterogen Atoms 58
Software Software Software Name Purpose X-PLOR refinement DENZO data reduction SCALEPACK data scaling X-PLOR phasing