X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7
Details pH 7.00, VAPOR DIFFUSION, HANGING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 17.97 α = 88.2
b = 26.92 β = 79.4
c = 33.78 γ = 82.5
Symmetry
Space Group P -1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 285
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS II -- 1995-09-01
Diffraction Radiation
Monochromator Protocol
-- --
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
1.7 25 77.0 0.032 -- -- 1.9 -- 5222 -- 1.0 15.8
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)
1.7 1.9 37.0 0.058 -- 7.3 1.9 --

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
SIR 1.7 6.0 -- 2.0 -- 5222 530 77.0 0.25 0.205 0.205 0.25 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 1.7 1.78 -- 21 182 0.285 0.184 -- 25.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 11.7
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 0.73
x_bond_d 0.016
x_angle_deg 2.6
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 236
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 82

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
CCP4 Data Reduction (data scaling)
MLPHARE Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
MLPHARE model building