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Solvation effect in conformational changes of EF-hand proteins: X-ray structure of Ca2+-saturated double mutant Q41L-K75I of N-domain of calmodulin
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1CLL pdb entry 1CLL
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 294 36% (v/v) PEG 400, 100 mM HEPES, 200 mM CaCl2, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Crystal Properties Matthews coefficient Solvent content 1.97 37.41
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 38.4 α = 90 b = 38.4 β = 90 c = 81.2 γ = 120
Symmetry Space Group P 32 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 100 IMAGE PLATE RIGAKU RAXIS IV mirrors MSC, OREM 2001-10-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 1.9 79.7 99.3 5553 21.9
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.9 1.97 99.3
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 pdb entry 1CLL 2 25.73 2 5552 4811 238 95.5 0.24 0.239 0.239 0.2363 0.243 0.2356 RANDOM 29.4
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] -0.2 1.3 -0.2 0.41
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 24 c_angle_deg 1.6 c_improper_angle_d 1.1 c_bond_d 0.014 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 24 c_angle_deg 1.6 c_improper_angle_d 1.1 c_bond_d 0.014 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 c_mcbond_it c_mcangle_it c_scbond_it c_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 574 Nucleic Acid Atoms Solvent Atoms 50 Heterogen Atoms 8
Software Software Software Name Purpose CNS refinement CrystalClear data collection CrystalClear data reduction CrystalClear data scaling EPMR phasing