X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 9.5
Temperature 25.0
Details enzyme: 30 mg/mL; buffer: 40% saturated ammonium sulfate, 100 mM Tris/10 mM magnesium sulfate, pH 9.5, VAPOR DIFFUSION, HANGING DROP, temperature 25K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 194.83 α = 90
b = 167.1 β = 90
c = 76.67 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 295
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR UCSD MARK III -- 1996-08-26
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

Data Collection

Overall
Resolution (High) Resolution (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 30 92.6 0.052 -- -- 2.6 84601 78354 0.0 0.0 25.7
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.0 2.15 72.6 0.257 -- -- 1.7 12128

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
-- 2.0 12.0 0.0 0.0 78354 77898 3115 99.1 0.181 0.181 0.175 0.229 every 25
RMS Deviations
Key Refinement Restraint Deviation
s_angle_d 0.028
s_bond_d 0.016
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6606
Nucleic Acid Atoms 0
Heterogen Atoms 30
Solvent Atoms 557

Software

Computing
Computing Package Purpose
SDMS Data Reduction (intensity integration)
SDMS Data Reduction (data scaling)
X-PLOR Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
X-PLOR model building
SDMS data reduction
SDMS data collection