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GI-ALPHA-1 SUBUNIT OF GUANINE NUCLEOTIDE-BINDING PROTEIN COMPLEXED WITH A GTP ANALOGUE
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1GIA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7 PROTEIN BOUND TO GPPNHP WAS CRYSTALLIZED IN 1.8-2.0M (NH4)2SO3, 100MM SODIUM
ACETATE, H 6.0, 1MM MGSO4, 1MM GPPNHP, AND 5MM DTT. PRIOR TO DATA COLLECTION
CRYSTALS WERE TRANSFERED TO 2.0M LI2SO4, 1MM GPPNHP, 3MM DTT, 1MM MGSO4, 100MM
BES, PH 7.0, AND 15% GLYCEROL. CRYSTALS WERE FLASH FROZEN IN LIQUID PROPANE.
Crystal Properties Matthews coefficient Solvent content 2.42 49.26
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 80.05 α = 90 b = 80.05 β = 90 c = 105.55 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 CCD ADSC QUANTUM 4 1998-06-02 M SINGLE WAVELENGTH 2 1 x-ray CCD ADSC QUANTUM 4 1998-06-02 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CHESS BEAMLINE A1 CHESS A1 2 SYNCHROTRON CHESS BEAMLINE F1 CHESS F1
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 1,2 1.5 15 90.2 0.051 21.6 3.92 57771 57771 15.94
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) 1.5 1.55 77.4 0.14 7.5 2.5
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (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 1GIA 1.5 15 1 57291 2895 90.84 0.213 0.2005 0.235 0.2205 RANDOM 18.02
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 x_dihedral_angle_d 22.83 x_scangle_it 4.17 x_scbond_it 2.619 x_mcangle_it 2.166 x_angle_deg 1.37 x_mcbond_it 1.368 x_improper_angle_d 1.36 x_bond_d 0.011 x_bond_d_na x_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 22.83 x_scangle_it 4.17 x_scbond_it 2.619 x_mcangle_it 2.166 x_angle_deg 1.37 x_mcbond_it 1.368 x_improper_angle_d 1.36 x_bond_d 0.011 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d_na x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2543 Nucleic Acid Atoms Solvent Atoms 157 Heterogen Atoms 33
Software Software Software Name Purpose X-PLOR model building X-PLOR refinement DENZO data reduction SCALEPACK data scaling X-PLOR phasing