X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.3
Details PROTEIN WAS CRYSTALLISED FROM 50MM TRIS-BUFFER PH 8.3, 0.25 MG/ML FMN, 4% TERTIARY BUTANOL, SATURATED WITH THE INHIBITOR.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 148.1 α = 90
b = 148.1 β = 90
c = 136.5 γ = 90
Symmetry
Space Group I 4 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS II -- 1994-10
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

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
2.6 100 87.1 0.085 0.085 -- 2.4 -- 20291 -- 0.0 --
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)
2.6 2.68 74.4 0.206 0.206 3.1 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
DIFFERENCE FOURIER 2.6 8.0 -- 0.0 -- 20005 1579 87.1 -- 0.18 0.18 0.242 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 2.68 2.76 -- -- -- 0.258 0.357 -- 74.4
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 23.2
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.007
x_dihedral_angle_d 22.95
x_angle_deg 1.374
x_improper_angle_d 1.28
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2697
Nucleic Acid Atoms 0
Heterogen Atoms 51
Solvent Atoms 292

Software

Software
Software Name Purpose
X-PLOR model building
X-PLOR refinement version: 3.1
DENZO data reduction
CCP4 data scaling
X-PLOR phasing