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THE 1.65 ANGSTROM STRUCTURE OF CALMODULIN RS20 PEPTIDE COMPLEX
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1VRM PDB ENTRY 1VRM CHAIN A AND CHAIN B
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 4.6 277 20% (W/V) PEG 8000, 100 MM SODIUM ACETATE 5 MM CALCIUM CHLORIDE 0.01% (W/V)
SODIUM AZIDE PH = 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.11 41.8
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 70.046 α = 90 b = 55.344 β = 90 c = 41.528 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 95 IMAGE PLATE RIGAKU RAXIS IIC COLLIMATOR 1996-01-08 M SINGLE WAVELENGTH 2 1 96 IMAGE PLATE RIGAKU RAXIS IIC 1996-02-09 3 1 92 IMAGE PLATE RIGAKU RAXIS IIC 1996-02-28
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200
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 1.53 30 79.3 0.105 19.6 8.4 166836 19966 -3 19.6
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) 1.65 1.68 59.4 0.221 6.9 5.5
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (I) 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 1VRM CHAIN A AND CHAIN B 1.65 29.595 -3 17495 17495 1801 87.3 0.185 0.185 0.185 0.1943 0.214 0.2145 RANDOM 22.2
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]
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 20.1 c_scangle_it 2.55 c_mcangle_it 1.79 c_scbond_it 1.65 c_angle_deg 1.2 c_mcbond_it 1.06 c_improper_angle_d 0.8 c_bond_d 0.006 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 20.1 c_scangle_it 2.55 c_mcangle_it 1.79 c_scbond_it 1.65 c_angle_deg 1.2 c_mcbond_it 1.06 c_improper_angle_d 0.8 c_bond_d 0.006 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1494 Nucleic Acid Atoms Solvent Atoms 324 Heterogen Atoms 8
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling AMoRE phasing CNS refinement