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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. VAPOR DIFFUSION, HANGING DROP at 277K, temperature 277.0K
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 53.152 α = 90 b = 68.79 β = 90 c = 89.651 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 IMAGE PLATE RIGAKU RAXIS IIC Yale mirrors 2000-04-09 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200 1.5418
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 2.4 20 93.4 0.088 0.088 17.4 3.7 6689 6248 -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) 2.4 2.49 94.2 0.133 0.133 12.3 3 650
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 2.4 20 6695 6230 670 93.1 0.211 0.211 0.203 0.276 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] 9.24 -16.262 7.023
RMS Deviations Key Refinement Restraint Deviation c_scangle_it 2.43 c_mcangle_it 1.96 c_scbond_it 1.68 c_mcbond_it 1.22 c_angle_deg 1.2 c_bond_d 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1312 Nucleic Acid Atoms Solvent Atoms 74 Heterogen Atoms 126
Software Software Software Name Purpose AMoRE phasing CNS refinement DENZO data reduction SCALEPACK data scaling