X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 7
Temperature 297.0
Details 10 mg/ml of protein; 50 mM buffer (MES or MOPS), 1% pyridine., pH 7.0, VAPOR DIFFUSION, temperature 297K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 76.36 α = 90
b = 76.36 β = 90
c = 91.53 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC -- 1994-11-03
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
2.8 30 97.8 0.079 -- -- 2.5 -- 4159 -- -- 23.6
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)
2.8 2.85 99.5 0.274 -- 3.3 2.5 --

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
-- 2.8 30.0 -- 2.0 -- 3933 209 87.9 -- 0.196 0.196 0.24 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.8 2.93 -- 24 436 0.299 0.284 -- 94.7
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 0.736
x_bond_d 0.01
x_angle_deg 1.33
x_dihedral_angle_d 24.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 966
Nucleic Acid Atoms 0
Heterogen Atoms 30
Solvent Atoms 38

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR Structure Solution
X-PLOR 98.0 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 98.0 refinement
X-PLOR model building
SCALEPACK data reduction
DENZO data collection