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Two crystal structures of the cytoplasmic molybdate-binding protein ModG suggest a novel cooperative binding mechanism and provide insights into ligand-binding specificity. Phosphate-grown form with tungstate and phosphate bound
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 8.5 VAPOUR DIFFUSION. 75% SATURATED KH2PO4 IN 100MM TRIS-HCL PH8.5 WITH 2MM NA2WO4., pH 8.50
Crystal Properties Matthews coefficient Solvent content 1.34 40
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 50.685 α = 90 b = 50.685 β = 90 c = 79.112 γ = 120
Symmetry Space Group P 3 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 MARRESEARCH 1998-04-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-3 ESRF ID14-3
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 1.8 44 98.9 0.088 5.5 9.5 10860 -3 17.4
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 1.8 1.9 95.6 0.224 2.7 7.1
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) 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 MAD THROUGHOUT 1.8 40 10860 538 98.9 0.186 0.1749 0.227 0.221 RANDOM 19
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 p_transverse_tor 46.5 p_staggered_tor 13.8 p_scangle_it 7.067 p_scbond_it 5.098 p_mcangle_it 3.809 p_planar_tor 3.6 p_mcbond_it 2.579 p_multtor_nbd 0.271 p_singtor_nbd 0.177 p_xyhbond_nbd 0.15
RMS Deviations Key Refinement Restraint Deviation p_transverse_tor 46.5 p_staggered_tor 13.8 p_scangle_it 7.067 p_scbond_it 5.098 p_mcangle_it 3.809 p_planar_tor 3.6 p_mcbond_it 2.579 p_multtor_nbd 0.271 p_singtor_nbd 0.177 p_xyhbond_nbd 0.15 p_chiral_restr 0.134 p_planar_d 0.04 p_angle_d 0.034 p_plane_restr 0.0213 p_bond_d 0.013 p_angle_deg p_hb_or_metal_coord p_xhyhbond_nbd p_orthonormal_tor p_special_tor
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 994 Nucleic Acid Atoms Solvent Atoms 61 Heterogen Atoms 18
Software Software Software Name Purpose REFMAC refinement DENZO data reduction SCALEPACK data scaling MLPHARE phasing