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The 1.9 A crystal structure of alanine racemase from Mycobacterium tuberculosis contains a conserved entryway into the active site
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 9.2 277 Sodium carbonate/bicarbonate, CaCl2, PEG400, HEPES, pH 9.2, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.41 48.63
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 164.78 α = 90 b = 164.78 β = 90 c = 57.88 γ = 90
Symmetry Space Group P 41 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 93 CCD ADSC QUANTUM 4 2002-06-30 M SINGLE WAVELENGTH 2 1 x-ray 93 CCD ADSC QUANTUM 4 2002-06-30 M MAD
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CHESS BEAMLINE F1 0.916 CHESS F1 2 SYNCHROTRON CHESS BEAMLINE F1 0.9788, 0.9790, 0.9562, 0.9809 CHESS F1
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 1.8 30 91.2 0.06 34.5 11.5 73618 67592 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 1.8 1.86 95.6 0.672 2.6 6985
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Cut-off Sigma (I) Number Reflections (All) 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 MAD THROUGHOUT 1.9 30 2 63019 56748 1747 0.214 0.204 0.254 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 s_angle_d 1.9 s_bond_d 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5360 Nucleic Acid Atoms Solvent Atoms 350 Heterogen Atoms 30
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling SOLVE phasing SHELXL-97 refinement