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SecA-N68, a C-terminal truncation of the SecA ATPase from E. coli
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3BXZ 3BXZ and 5K94 experimental model PDB 5K94 3BXZ and 5K94
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8 293 0.1M Tris-HCl pH 8.0, 18% PEG 3000, and 0.9% w/v cadaverine; 18 mg/mL protein concentration. Cryoprotectant included 18% PEG 3000 and 20% PEG 200
Crystal Properties Matthews coefficient Solvent content 2.85 56.89
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 67.065 α = 90 b = 64.45 β = 105.85 c = 87.967 γ = 90
Symmetry Space Group P 1 21 1
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 300 mm CCD 2011-06-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CLSI BEAMLINE 08ID-1 1.105535 CLSI 08ID-1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 2.59 84.623 99.4 0.12 8.8 4 22456 35.03
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 2.59 2.73 96.8 0.511 1.5 4
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model 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) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 3BXZ and 5K94 2.6 17.916 1.35 22316 2216 99.79 0.2009 0.1956 0.2023 0.2497 0.255 47.7153
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 14.028 f_angle_d 0.769 f_chiral_restr 0.044 f_bond_d 0.006 f_plane_restr 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4503 Nucleic Acid Atoms Solvent Atoms 120 Heterogen Atoms 40
Software Software Software Name Purpose PHENIX refinement SCALA data scaling PDB_EXTRACT data extraction iMOSFLM data reduction PHENIX phasing