X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 277.0
Details calcium acetate, sodium cacodylate, PEG8000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 82.64 α = 90
b = 82.64 β = 90
c = 102.79 γ = 120
Symmetry
Space Group P 65 2 2

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2000-05-22
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SPRING-8 BEAMLINE BL44B2 0.97925,0.97882,0.97115,0.98660 SPRING-8 BL44B2

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
-- -- -- -- -- -- -- -- 13795 -- -- --

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
MAD 2.0 20.0 2.0 2.0 14561 14521 726 -- 0.285 0.244 0.238 0.283 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
CNS impropers degree 0.701
c_angle_deg 1.11
c_bond_d 0.006
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1292
Nucleic Acid Atoms 0
Heterogen Atoms 28
Solvent Atoms 180

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHARP Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
SHARP model building