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Crystal structure of I14G DHFR mutant complexed with folate and NADP+
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1RX2
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8.5 291 0.1 M Tris, pH 8.5, 0.9 M LiCl, 36% w/v PEG 6000, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties Matthews coefficient Solvent content 2.16 43.17
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 33.489 α = 90 b = 34.431 β = 90 c = 134.234 γ = 90
Symmetry Space Group P 2 21 21
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 NOIR-1 2010-09-08 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 4.2.2 1.000 ALS 4.2.2
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 1.44 67.12 96.4 0.049 21.1 6.6 27985 27985 -3
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 1.44 1.52 76.8 0.365 3 3.8
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 (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 1RX2 1.44 33.58 26481 1446 96.18 0.18284 0.18151 0.1902 0.20626 0.2139 RANDOM 18.734
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] 0.78 -0.32 -0.46
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.613 r_dihedral_angle_3_deg 13.286 r_dihedral_angle_4_deg 10.399 r_long_range_B_refined 7.946 r_long_range_B_other 7.944 r_dihedral_angle_1_deg 6.436 r_scangle_other 5.502 r_scbond_other 3.627 r_scbond_it 3.617 r_mcangle_it 3.505
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.613 r_dihedral_angle_3_deg 13.286 r_dihedral_angle_4_deg 10.399 r_long_range_B_refined 7.946 r_long_range_B_other 7.944 r_dihedral_angle_1_deg 6.436 r_scangle_other 5.502 r_scbond_other 3.627 r_scbond_it 3.617 r_mcangle_it 3.505 r_mcangle_other 3.477 r_angle_refined_deg 2.419 r_mcbond_it 2.34 r_mcbond_other 2.303 r_angle_other_deg 1.031 r_chiral_restr 0.159 r_bond_refined_d 0.025 r_gen_planes_refined 0.014 r_gen_planes_other 0.002 r_bond_other_d 0.001 r_nbd_refined r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_refined r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_refined r_symmetry_vdw_other r_symmetry_hbond_refined r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_scangle_it r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1243 Nucleic Acid Atoms Solvent Atoms 155 Heterogen Atoms 63
Software Software Software Name Purpose Blu-Ice data collection PHASER phasing REFMAC refinement XDS data reduction SCALA data scaling