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Kinetic and crystallographic studies on 2-(beta-D-glucopyranosyl)-5-methyl-1,3,4-oxadiazole,-benzothiazole, and-benzimidazole, inhibitors of muscle glycogen phosphorylase b. Evidence for a new binding site.
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 SMALL TUBES 6.8 289 pH 6.8, SMALL TUBES, temperature 289K
Crystal Properties Matthews coefficient Solvent content 2.43 48.96
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 128.129 α = 90 b = 128.129 β = 90 c = 115.384 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 298 CCD MARRESEARCH M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X13 0.8015 EMBL/DESY, HAMBURG X13
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 1.92 30 98.8 0.053 21.1 73602 72730 24.5
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 1.92 1.95 98 0.526 3.7 3552
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 1.92 29.32 72730 3717 98.8 0.182 0.182 0.2 RANDOM 29.8
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] 2.55 2.55 -5.1
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 21.9 c_scangle_it 3.43 c_scbond_it 2.2 c_mcangle_it 1.99 c_mcbond_it 1.28 c_angle_deg 1.2 c_improper_angle_d 0.77 c_bond_d 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6589 Nucleic Acid Atoms Solvent Atoms 368 Heterogen Atoms 32
Software Software Software Name Purpose CNS refinement HKL-2000 data reduction SCALEPACK data scaling CNS phasing