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The 1.45A Three-Dimensional Structure of c-Phycocyanin from the Thermophylic Cyanobacterium Synechococcus elongatus
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1CPC PDB Entry 1CPC
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.1 293 Ammonium Sulphate, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.88 57.36
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 187.995 α = 90 b = 187.995 β = 90 c = 60.542 γ = 120
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 4 2000-07-04 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SRS BEAMLINE PX14.1 1.244 SRS PX14.1
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 1.45 56.7 99.7 0.088 5.7 6.8 71757 16.34
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 1.45 1.53 99.7 0.261 2.5 3.8 10410
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) 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 1CPC 1.45 56.7 67533 3617 0.148 0.146 0.1535 0.188 0.1917 Random 16.47
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] -1.31 -1.31 1.97 -0.66
RMS Deviations Key Refinement Restraint Deviation p_dihedral_angle_d 4.632 p_angle_deg 2.931 p_improper_angle_d 0.161 p_bond_d 0.039
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2498 Nucleic Acid Atoms Solvent Atoms 474 Heterogen Atoms 129
Software Software Software Name Purpose MOSFLM data reduction SCALA data scaling AMoRE phasing REFMAC refinement CCP4 data scaling