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New crystal form of HIV-1 Protease/Saquinavir structure reveals carbamylation of N-terminal proline
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2A1E PDB ENTRY 2A1E
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6 298 AMMONIUM SULFATE, DMSO, SODIUM CITRATE, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.18 43.57
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 51.205 α = 90 b = 62.673 β = 98.42 c = 59.076 γ = 90
Symmetry Space Group P 1 21 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 MAR CCD 165 mm 2008-04-11 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ELETTRA BEAMLINE 5.2R ELETTRA 5.2R
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 1.39 14.71 97.8 0.084 9.7 2.9 209382 72637 4 2
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 1.39 1.47 80.5 0.354 2 2.7
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) 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 FREE R PDB ENTRY 2A1E 1.39 10 68870 53965 3628 92.9 0.1593 0.1647 0.2265 0.2206 RANDOM
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]
Coordinate Error Structure Solution Method Refinement High Resolution Refinement Low Resolution 29 3332.5
RMS Deviations Key Refinement Restraint Deviation s_approx_iso_adps 0.083 s_non_zero_chiral_vol 0.062 s_similar_adp_cmpnt 0.06 s_zero_chiral_vol 0.047 s_from_restr_planes 0.0281 s_angle_d 0.028 s_anti_bump_dis_restr 0.01 s_bond_d 0.009 s_rigid_bond_adp_cmpnt 0.003 s_similar_dist
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3030 Nucleic Acid Atoms Solvent Atoms 189 Heterogen Atoms 115
Software Software Software Name Purpose HKL-2000 data collection AMoRE phasing SHELXL-97 refinement MOSFLM data reduction SCALA data scaling