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The crystal structure of PhaZ7 at atomic (1.2 Angstrom) resolution reveals details of the active site and suggests a substrate binding mode
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2X5X PDB ENTRY 2X5X
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7 289 PHAZ7 WAS CRYSTALLIZED USING THE HANGING DROP VAPOR DIFFUSION METHOD AT 16 C. THE WELL SOLUTION CONSISTED OF 20% W/V PEG3350 AND 0.2 M NA IODIDE. A 1.5 MICROLITRES PROTEIN SOLUTION WAS MIXED WITH AN EQUAL VOLUME OF WELL SOLUTION ON SILICONIZED COVERSLIPS.
Crystal Properties Matthews coefficient Solvent content 2.75 55.24
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 49.63 α = 90 b = 140.58 β = 90 c = 56.75 γ = 90
Symmetry Space Group P 21 21 2
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 2008-03-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-2 ESRF ID14-2
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 1.45 20 99.9 0.1 13.1 5.9 71446 3.9
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 1.45 1.49 99.8 0.43 4.1 5.95
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION DIRECT METHODS FREE R-VALUE PDB ENTRY 2X5X 1.45 20 67830 94.4 0.1345 0.1272 0.178 0.1674 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 14 3040.5
RMS Deviations Key Refinement Restraint Deviation s_anti_bump_dis_restr 0.497 s_approx_iso_adps 0.083 s_non_zero_chiral_vol 0.056 s_zero_chiral_vol 0.053 s_similar_adp_cmpnt 0.036 s_from_restr_planes 0.0274 s_angle_d 0.027 s_bond_d 0.011 s_rigid_bond_adp_cmpnt 0.003 s_similar_dist
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2549 Nucleic Acid Atoms Solvent Atoms 468 Heterogen Atoms 22
Software Software Software Name Purpose SHELXL-97 refinement XDS data reduction XDS data scaling SHELXL-97 phasing