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Helix Bundle Quaternary Structure from alpha/beta-Peptide Foldamers: GCN4-pLI with beta-residues at b and f heptad positions.
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 298 0.1 M HEPES, 1.5 M ammonium formate, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 1.7 27.8
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 34.847 α = 90 b = 34.847 β = 90 c = 47.106 γ = 90
Symmetry Space Group P 4 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 confocal mirrors 2006-09-21 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 47.1 100 6.6 20.3 10.9 2220 2220
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 2.1 99.7 42.2 3.6 4
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) 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 MOLECULAR REPLACEMENT THROUGHOUT 2 25 2104 103 99.91 0.21452 0.21244 0.2057 0.25149 0.2505 RANDOM 14.558
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] 0.92 0.92 -1.85
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.176 r_dihedral_angle_3_deg 19.048 r_dihedral_angle_4_deg 8.913 r_dihedral_angle_1_deg 5.396 r_scangle_it 4.283 r_scbond_it 2.942 r_angle_refined_deg 2.368 r_mcangle_it 1.619 r_angle_other_deg 1.327 r_mcbond_it 0.847
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.176 r_dihedral_angle_3_deg 19.048 r_dihedral_angle_4_deg 8.913 r_dihedral_angle_1_deg 5.396 r_scangle_it 4.283 r_scbond_it 2.942 r_angle_refined_deg 2.368 r_mcangle_it 1.619 r_angle_other_deg 1.327 r_mcbond_it 0.847 r_symmetry_hbond_refined 0.305 r_symmetry_vdw_other 0.245 r_mcbond_other 0.233 r_nbd_other 0.22 r_nbd_refined 0.192 r_xyhbond_nbd_refined 0.177 r_nbtor_refined 0.174 r_symmetry_vdw_refined 0.17 r_chiral_restr 0.12 r_nbtor_other 0.095 r_bond_refined_d 0.02 r_gen_planes_refined 0.011 r_bond_other_d 0.009 r_gen_planes_other 0.001 r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 286 Nucleic Acid Atoms Solvent Atoms 13 Heterogen Atoms 15
Software Software Software Name Purpose REFMAC refinement PROTEUM PLUS data collection PROTEUM PLUS data reduction PROTEUM PLUS data scaling PHASER phasing