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X-ray Crystallographic Studies of Serotonin N-acetyltransferase Catalysis and Inhibition
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1KUV
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.5 277 PEG 2000, MPD, ammonium sulfate, MES pH 6.5, magnesium acetate, DTT, spermidine,
and lithium chloride. pH 6.5, VAPOR DIFFUSION, HANGING DROP at 277K, temperature 277.0K
Crystal Properties Matthews coefficient Solvent content 1.78 30.9
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 53.455 α = 90 b = 68.567 β = 90 c = 89.791 γ = 90
Symmetry Space Group C 2 2 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD ADSC QUANTUM 4 2000-01-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CHESS BEAMLINE A1 0.9100 CHESS A1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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 1.8 25 99.6 0.046 0.046 25.8 5 13976 13920 -3
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.8 1.86 97.8 0.16 0.16 7.3 2.5 1375
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-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1KUV 1.8 25 13976 13680 1343 87.5 0.2 0.2 0.197 0.225 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] 0.776 -2.246 1.47
RMS Deviations Key Refinement Restraint Deviation c_scangle_it 2.89 c_scbond_it 2.01 c_mcangle_it 1.85 c_mcbond_it 1.24 c_angle_deg 1.2 c_bond_d 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1312 Nucleic Acid Atoms Solvent Atoms 160 Heterogen Atoms 66
Software Software Software Name Purpose AMoRE phasing CNS refinement ADSC data collection DENZO data reduction SCALEPACK data scaling