X-RAY DIFFRACTION

Crystallization Details
Method pH Temprature Details
X-RAY DIFFRACTION 5.5 294 The purified protein was concentrated to 10-20 mg/ml and buffer exchanged into 25 mM Tris-HCl, pH 8.0, 30-50 mM NaCl, 25 mM sodium citrate. DMO crystals were grown using the vapor diffusion by sitting drop method, with a reservoir solution of 8-11% PEG 6000, 100 mM sodium acetate buffer pH 5.5, 1 M LiCl, and 4 uL droplets of varying protein-to-precipitant ratios., VAPOR DIFFUSION, SITTING DROP, temperature 294K
Unit Cell:
a: 81.110 Å b: 81.110 Å c: 158.810 Å α: 90.00° β: 90.00° γ: 120.00°
Symmetry:
Space Group: P 32
Crystal Properties:
Matthew's Coefficient: 2.60 Solvent Content: 52.72
Refinement Statistics
Diffraction ID Structure Solution Method Cross Validation Method Resolution Limit (High) Resolution Limit (Low) Number of Reflections (Observed) Number of Reflections (R-free) Percent Reflections (Observed) R-Work R-Free Mean Isotropic
X-RAY DIFFRACTION MR WAS PERFORMED USING A PRELIMINARY DMO STRUCTURE. THIS EARLY DMO STRUCTURE WAS OBTAINED LARGELY USING A HIGH-REDUNDANCY, 1.5418 A WAVELENGTH DATA SET FOR FE SINGLE ANOMALOUS DISPERSION (SAD) PHASING, WITH ASSISTANCE FROM THE SULFUR ANOMALOUS SIGNAL IN A HIGH-REDUNDANCY, 2.29 A WAVELENGTH DATA SET. THROUGHOUT 1.950 20.000 71130 7209 83.600 ? 0.2617 41.483
Data Collection
Overall
Resolution Limit (High) Resolution Limit (Low) Percent Possible (Observed) R Merge I (Observed) R Sym 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
1.95 36.12 96.3 0.067 ? 31.4 6.7 84535 81407 0.0 0.0 ?
Highest Resolution Shell
# Resolution Limits (Low) Resolution Limits (High) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1 1.95 2.02 92 ? ? 2.64 6.9 ?
Diffraction
Diffraction experiment
Crystal ID Scattering Type Data Collection Temprature Detector Detector Type Details Collection Date Monochromator Protocol
1 100 K
Radiation Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 22-ID 1.000 APS 22-ID
Software
Software Name Purpose Version
SERGUI data collection Control Program
PHASER phasing .
CNX refinement .
HKL-2000 data reduction .
HKL-2000 data scaling .