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Crystal Structure of Calicheamicin Methyltransferase, CalS11
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3TOS pdb entry 3TOS
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8.5 298 Protein solution (11 mg/ml CalS11, 25mM Tris pH 8.0, 5 mg/ml calicheamicin) mixed in a 1:1 ratio with the well solution (25% PEG 3350, .2M LiSO4, .1M Tris pH 8.5) Cryoprotected with 30% PEG 3350, .2M LiSO4, .1M Tris pH 8.5, Vapor diffusion, hanging drop, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.35 47.65
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 75.112 α = 80.88 b = 106.24 β = 81.65 c = 184.6 γ = 70.02
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 MARMOSAIC 225 mm CCD 2011-11-05 SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 21-ID-F 0.97872 APS 21-ID-F
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 2.2 50 94.8 0.11 6.3 3.9 254196 254196
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 2.2 2.24 62.9 0.484 3.7 8379
Refinement Statistics Diffraction ID Structure Solution 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-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT pdb entry 3TOS 2.2 49.322 254196 254162 1899 94.7 0.1594 0.1594 0.159 0.1607 0.213 0.2149 5% selected in thin shells 15.2599
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 f_dihedral_angle_d 13.111 f_angle_d 1.186 f_chiral_restr 0.074 f_bond_d 0.007 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 40116 Nucleic Acid Atoms Solvent Atoms 2734 Heterogen Atoms 660
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling PHASER phasing PHENIX refinement PDB_EXTRACT data extraction HKL-2000 data collection HKL-2000 data reduction HKL-2000 data scaling PHENIX phasing