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Structure of a sialic acid activating synthetase, CMP acylneuraminate synthetase in the presence and absence of CDP
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8.5 291 28% PEG 2000, 100 mM Tris-HCl, 1 % Ethanol, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 18K
Crystal Properties Matthews coefficient Solvent content 2 38.59
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 42.98 α = 90 b = 59.52 β = 90 c = 157.56 γ = 90
Symmetry Space Group P 21 21 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 1999-04-22 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X8C NSLS X8C
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 10 92.5 0.061 18.6 7.1 22325 12
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) 2.1 2.23 83.4 0.22 3
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION THROUGHOUT 2 19.94 1.5 25030 1235 88.8 0.212 0.212 0.2211 0.256 0.2613 RANDOM 33.6
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] 4.32 6.98 -11.3
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 24 c_scangle_it 2.5 c_mcangle_it 2.33 c_scbond_it 1.76 c_angle_deg 1.5 c_mcbond_it 1.36 c_improper_angle_d 1.12 c_bond_d 0.009 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 24 c_scangle_it 2.5 c_mcangle_it 2.33 c_scbond_it 1.76 c_angle_deg 1.5 c_mcbond_it 1.36 c_improper_angle_d 1.12 c_bond_d 0.009 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3262 Nucleic Acid Atoms Solvent Atoms 404 Heterogen Atoms
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling SOLVE phasing CNS refinement