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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 6.8 298 pH 6.8, SMALL TUBES, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.43 48.97
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 128.114 α = 90 b = 128.114 β = 90 c = 115.45 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 2.1 30 99.8 0.067 15.8 56496 56369 18.1
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 2.1 2.14 99.4 0.468 3.8 2754
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 2.1 29.33 56369 2854 99.8 0.181 0.181 0.203 RANDOM 34
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] 2.28 4.1 -6.38
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 21.9 c_scangle_it 3.4 c_scbond_it 2.22 c_mcangle_it 1.97 c_mcbond_it 1.25 c_angle_deg 1.2 c_improper_angle_d 0.78 c_bond_d 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6589 Nucleic Acid Atoms Solvent Atoms 311 Heterogen Atoms 35
Software Software Software Name Purpose CNS refinement HKL-2000 data reduction SCALEPACK data scaling CNS phasing