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An alpha/beta-Peptide Helix Bundle with a Pure beta-Amino Acid Core and a Distinctive Quarternary Structure: GCN4pLI derivative with beta residues at a and d heptad positions - higher symmetry crystal
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 298 0.12 M NaI, 0.08 M NaCl, 0.1 M HEPES-Na pH 7.5, 20% (v/v) 2-methyl-2,4-pentanediol (MPD), VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 3.68 66.54
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 71.313 α = 90 b = 71.313 β = 90 c = 97.44 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 confocal mirrors 2007-06-21 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 Merge I (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 2.4 50.4 98.7 0.148 0.061 12.61 10451 10316
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.4 2.49 99.5 0.521 0.228 4.41 9.76 1096
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 THROUGHOUT 2.4 50.4 9808 9808 490 99 0.233 0.233 0.23 0.2306 0.296 0.2891 RANDOM 17.868
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] -0.14 -0.14 0.29
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 38.491 r_dihedral_angle_3_deg 18.282 r_dihedral_angle_4_deg 17.508 r_dihedral_angle_1_deg 6.543 r_scangle_it 3.785 r_scbond_it 2.181 r_angle_refined_deg 2.011 r_mcbond_other 1.478 r_angle_other_deg 1.393 r_mcangle_it 1.36
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 38.491 r_dihedral_angle_3_deg 18.282 r_dihedral_angle_4_deg 17.508 r_dihedral_angle_1_deg 6.543 r_scangle_it 3.785 r_scbond_it 2.181 r_angle_refined_deg 2.011 r_mcbond_other 1.478 r_angle_other_deg 1.393 r_mcangle_it 1.36 r_mcbond_it 0.67 r_chiral_restr 0.106 r_bond_other_d 0.026 r_bond_refined_d 0.013 r_gen_planes_refined 0.003 r_gen_planes_other 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1176 Nucleic Acid Atoms Solvent Atoms 79 Heterogen Atoms 9
Software Software Software Name Purpose REFMAC refinement PROTEUM PLUS data collection PROTEUM PLUS data reduction PROTEUM PLUS data scaling PHASER phasing