X-RAY DIFFRACTION

Crystallization Details
Method pH Temprature Details
X-RAY DIFFRACTION ? 293 1 uL of 24 mg/mL MCR was mixed with 1 uL of well solution (27% (w/v) PEG400, 0.18 M magnesium acetate, 0.25 M sodium chloride, and 0.10 M HEPES pH 7.5) to make a 2-uL sitting drop in a sealed well with 30 uL well solution. Yellowish green rod MCR crystals grew in two to four hrs. The entire crystallization plate was shipped to Advanced Light Source Beamline 8.2.2 for Xe- pressurization and data collection. The crystals used to determine Xe-derivatized structure were transferred from the sitting drop into 2-5 uL of paraffin oil briefly and then sealed in a steel chamber pressurized with xenon at 180 psi for 10 mins. The Xe-derivatized crystals were flash-cooled in liquid nitrogen for data collection immediately.
Unit Cell:
a: 81.956 Å b: 115.741 Å c: 123.400 Å α: 90.000° β: 92.525° γ: 90.000°
Symmetry:
Space Group: P 1 21 1
Crystal Properties:
Matthew's Coefficient: 2.15 Solvent Content: 42.80
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 MOLECULAR REPLACEMENT FREE R-VALUE 2.5030 69.63 151575 7573 97.04 0.1803 0.2180 39.81
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
2.5030 69.6330 97.1 ? 0.086 9.8 3 ? 151627 ? ? 35.38
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 2.5030 2.59 ? ? ? ? ? ?
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 ALS BEAMLINE 8.2.2 1.5498 ALS 8.2.2
Software
Software Name Purpose Version
PHENIX refinement 1.18_3845
HKL-2000 data scaling .
PDB_EXTRACT data extraction 3.27
HKL-2000 data reduction .
PHENIX phasing .