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CHOLERA TOXIN B-PENTAMER COMPLEXED WITH GM1 PENTASACCHARIDE
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2CHB PDB ENTRY 2CHB
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7 SITTING DROP, pH 7.0, vapor diffusion - sitting drop
Crystal Properties Matthews coefficient Solvent content 1.79 31.4
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 102.124 α = 90 b = 66.176 β = 106.33 c = 78.221 γ = 90
Symmetry Space Group C 1 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 125 IMAGE PLATE MARRESEARCH BENT CRYSTAL + VERTICAL MIRROR 1997-02-26 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL7-1 SSRL BL7-1
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 1.25 40 92 0.031 11.9 3.1 126728
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) 1.25 1.3 84 0.272 2.4
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION R-FREE PDB ENTRY 2CHB 1.25 22 123337 6491 92 0.1326 0.1326 0.141 0.18 RANDOM
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]
Coordinate Error Structure Solution Method Refinement High Resolution Refinement Low Resolution 12
RMS Deviations Key Refinement Restraint Deviation s_from_restr_planes 0.423 s_non_zero_chiral_vol 0.073 s_anti_bump_dis_restr 0.07 s_zero_chiral_vol 0.065 s_approx_iso_adps 0.046 s_similar_adp_cmpnt 0.037 s_angle_d 0.031 s_similar_dist 0.016 s_bond_d 0.013 s_rigid_bond_adp_cmpnt 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4098 Nucleic Acid Atoms Solvent Atoms 758 Heterogen Atoms 347
Software Software Software Name Purpose MOSFLM data reduction SCALA data scaling SHELX-96 refinement CCP4 data scaling