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The 2.0 Angstrom Resolution Crystal Structure of NpR1517, a Putative Heterocyst Differentiation Inhibitor from Nostoc punctiforme
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 295 .02M HEPES, 20% glycerol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties Matthews coefficient Solvent content 1.74 29.11
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 56.336 α = 90 b = 56.336 β = 90 c = 56.491 γ = 90
Symmetry Space Group P 43 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 100 CCD BRUKER SMART 6000 mirrors 2008-05-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE BRUKER AXS MICROSTAR 1.5418
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 2.01 39.9 95.9 0.06 76.22 105.86 6345 6345 3 24.37
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.01 2.05 95.9 0.28 9.15 19.53 1604
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Cut-off Sigma (I) 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 sulfur anomalous scattering THROUGHOUT 2.01 39.9 3 6053 291 98.59 0.19007 0.18795 0.1886 0.23683 0.2375 RANDOM 24.854
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] 0.31 0.31 -0.61
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 41.2 r_dihedral_angle_4_deg 19.471 r_dihedral_angle_3_deg 16.702 r_dihedral_angle_1_deg 6.272 r_sphericity_free 6.058 r_scangle_it 5.541 r_scbond_it 4.644 r_rigid_bond_restr 4.537 r_sphericity_bonded 3.061 r_mcangle_it 2.165
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 41.2 r_dihedral_angle_4_deg 19.471 r_dihedral_angle_3_deg 16.702 r_dihedral_angle_1_deg 6.272 r_sphericity_free 6.058 r_scangle_it 5.541 r_scbond_it 4.644 r_rigid_bond_restr 4.537 r_sphericity_bonded 3.061 r_mcangle_it 2.165 r_angle_refined_deg 1.596 r_mcbond_it 1.351 r_nbtor_refined 0.3 r_symmetry_vdw_refined 0.23 r_nbd_refined 0.224 r_xyhbond_nbd_refined 0.183 r_symmetry_hbond_refined 0.125 r_chiral_restr 0.095 r_bond_refined_d 0.016 r_gen_planes_refined 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 611 Nucleic Acid Atoms Solvent Atoms 59 Heterogen Atoms
Software Software Software Name Purpose REFMAC refinement PROTEUM2 data collection SAINT data reduction SADABS data scaling SHELXS phasing