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Structure of EntE and EntB, an NRPS adenylation-PCP fusion protein with pseudo translational symmetry
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3RG2 3RG2 chain C residues 2-536
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 6.5 293 The EntE-B protein crystallized via a modified vapor diffusion setup. A mother liquor of 20 % monomethyl ether PEG 2000 and 0.1 M bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane (BIS-TRIS) was made. The mother liquor was diluted 1:1 with the protein buffer for the crystallization reservoir and diluted 1:1 with protein solution for the hanging drop., pH 6.5, VAPOR DIFFUSION, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.34 47.47
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 110.99 α = 90 b = 119.11 β = 90 c = 99.77 γ = 90
Symmetry Space Group P 21 21 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 110 CCD MARMOSAIC 325 mm CCD 2010-02-08 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL11-1 1.00 SSRL BL11-1
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 2.4 76.5 98 0.094 7.5 3.7 52307 51261 -3 31.6
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 2.4 2.53 91.1 0.401 2.1 2.5 6837
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 3RG2 chain C residues 2-536 2.4 48.497 1.36 52407 51170 2655 97.64 0.2532 0.2532 0.2497 0.2475 0.3133 0.3107 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] 0.4223 0.7556 -1.1778
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 16.046 f_angle_d 1.255 f_chiral_restr 0.075 f_bond_d 0.009 f_plane_restr 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 9245 Nucleic Acid Atoms Solvent Atoms 205 Heterogen Atoms 106
Software Software Software Name Purpose Blu-Ice data collection MOLREP phasing PHENIX refinement MOSFLM data reduction SCALA data scaling