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CRYSTAL STRUCTURE OF UNLIGANDED ESCHERICHIA COLI DIHYDROFOLATE REDUCTASE. LIGAND-INDUCED CONFORMATIONAL CHANGES AND COOPERATIVITY IN BINDING
Crystallization Crystal Properties Matthews coefficient Solvent content 3.15 60.98
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 68.73 α = 90 b = 68.73 β = 90 c = 83.35 γ = 120
Symmetry Space Group P 31 2 1
Refinement Statistics Diffraction ID Structure Solution Method Resolution (High) Resolution (Low) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION 2.3 20 0.198
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_staggered_tor 26.5 p_orthonormal_tor 22.3 p_planar_tor 11.3 p_scangle_it 6.914 p_mcangle_it 5.832 p_scbond_it 5.088 p_mcbond_it 4.412 p_chiral_restr 0.347 p_multtor_nbd 0.235 p_singtor_nbd 0.229
RMS Deviations Key Refinement Restraint Deviation p_staggered_tor 26.5 p_orthonormal_tor 22.3 p_planar_tor 11.3 p_scangle_it 6.914 p_mcangle_it 5.832 p_scbond_it 5.088 p_mcbond_it 4.412 p_chiral_restr 0.347 p_multtor_nbd 0.235 p_singtor_nbd 0.229 p_xhyhbond_nbd 0.213 p_planar_d 0.077 p_angle_d 0.066 p_bond_d 0.026 p_plane_restr 0.024 p_angle_deg p_hb_or_metal_coord p_xyhbond_nbd p_transverse_tor p_special_tor
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1220 Nucleic Acid Atoms Solvent Atoms 120 Heterogen Atoms 3
Software Software Software Name Purpose PROLSQ refinement