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A Parallel Coiled-Coil Tetramer with Offset Helices
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2B22 PDB ENTRY 2B22
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.8 295 10% Iso-propanol, 20% PEG 4000, 0.1M sodium bromide, 0.1M sodium HEPES, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 295.0K
Crystal Properties Matthews coefficient Solvent content 2.08 40.84
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 23.783 α = 90 b = 53.878 β = 95.77 c = 52.016 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 IMAGE PLATE MAR scanner 345 mm plate 2005-10-07 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X4A 0.9795 NSLS X4A
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 1.35 52 94.4 0.047 17.5 3.4 27103 27103 14.2
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 1.35 1.37 95.3 0.395 4.9 3.7 1379
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model 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 PDB ENTRY 2B22 1.35 51.99 27103 27103 2729 94.4 0.2057 0.20576 0.20206 0.2052 0.23709 0.239 RANDOM 20.328
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] 0.7 -0.43 0.1 -0.88
RMS Deviations Key Refinement Restraint Deviation r_scangle_it 4.495 r_dihedral_angle_1_deg 4.095 r_scbond_it 2.733 r_mcangle_it 1.76 r_angle_refined_deg 1.26 r_mcbond_it 0.876 r_symmetry_vdw_refined 0.225 r_nbd_refined 0.205 r_xyhbond_nbd_refined 0.127 r_symmetry_hbond_refined 0.101
RMS Deviations Key Refinement Restraint Deviation r_scangle_it 4.495 r_dihedral_angle_1_deg 4.095 r_scbond_it 2.733 r_mcangle_it 1.76 r_angle_refined_deg 1.26 r_mcbond_it 0.876 r_symmetry_vdw_refined 0.225 r_nbd_refined 0.205 r_xyhbond_nbd_refined 0.127 r_symmetry_hbond_refined 0.101 r_chiral_restr 0.074 r_bond_refined_d 0.01 r_gen_planes_refined 0.006 r_bond_other_d r_angle_other_deg r_dihedral_angle_2_deg r_dihedral_angle_3_deg r_dihedral_angle_4_deg r_gen_planes_other r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1116 Nucleic Acid Atoms Solvent Atoms 164 Heterogen Atoms 10
Software Software Software Name Purpose REFMAC refinement MAR345 data collection DENZO data reduction SCALEPACK data scaling PHASER phasing