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Cholera holotoxin with an A-subunit Y30S mutation Form 3
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1LTG PDB ENTRIES 1LTG, 3CHB experimental model PDB 3CHB PDB ENTRIES 1LTG, 3CHB
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6.5 298 PEG 2000mme, MES, kemptide, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.69 53.92
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 60.104 α = 90 b = 107.431 β = 91.29 c = 65.95 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 CCD ADSC QUANTUM 210 2002-03-17 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 5.0.2 0.9800 ALS 5.0.2
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 2.13 20.02 99.6 0.096 12.1 3.2 46304 46304
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 2.13 2.21 99.8 0.392 3.3 4648
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 ENTRIES 1LTG, 3CHB 2.13 20.02 43956 43956 2340 99.29 0.17988 0.17988 0.1775 0.1901 0.22425 0.232 RANDOM 12.395
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] -0.11 -0.06 0.13 -0.02
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_1_deg 6.546 r_mcangle_it 1.436 r_scangle_it 1.432 r_angle_refined_deg 1.282 r_scbond_it 0.91 r_mcbond_it 0.887 r_angle_other_deg 0.704 r_symmetry_vdw_other 0.303 r_symmetry_hbond_refined 0.273 r_nbd_other 0.263
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_1_deg 6.546 r_mcangle_it 1.436 r_scangle_it 1.432 r_angle_refined_deg 1.282 r_scbond_it 0.91 r_mcbond_it 0.887 r_angle_other_deg 0.704 r_symmetry_vdw_other 0.303 r_symmetry_hbond_refined 0.273 r_nbd_other 0.263 r_nbd_refined 0.213 r_xyhbond_nbd_refined 0.205 r_symmetry_vdw_refined 0.194 r_metal_ion_refined 0.133 r_nbtor_other 0.09 r_chiral_restr 0.076 r_bond_refined_d 0.012 r_gen_planes_refined 0.005 r_gen_planes_other 0.004 r_bond_other_d 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5647 Nucleic Acid Atoms Solvent Atoms 404 Heterogen Atoms 1
Software Software Software Name Purpose REFMAC refinement HKL-2000 data reduction SCALEPACK data scaling MOLREP phasing