X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.3
Details PROTEIN WAS CRYSTALLIZED FROM 50MM TRIS- BUFFER, 0.25 MG/ML FMN, 4% TERTIARY BUTANOL AND 0.5 % JF 5969, PH 8.3. JF 5969 IS A MIXTURE OF SYMPERONIC NPE1800 (33.3G/L), TWEEN 85 (20G/L) IN CYCLOHEXANONE.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 95.4 α = 90
b = 95.4 β = 90
c = 93.5 γ = 90
Symmetry
Space Group I 4

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1996-04
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
2.2 100 99.8 -- 0.094 -- 11.1 -- 21308 -- 0.0 0.317
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)
2.2 2.25 99.9 -- 0.369 3.3 -- --

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
MOLECULAR REPLACEMENT 2.2 8.0 -- 0.0 -- 21198 1661 100.0 -- 0.194 0.194 0.251 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 2.2 2.34 -- -- -- 0.265 0.279 -- 100.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model INDIVIDUAL
Mean Isotropic B 0.276
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.246
x_bond_d 0.007
x_angle_deg 1.37
x_dihedral_angle_d 23.78
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2649
Nucleic Acid Atoms 0
Heterogen Atoms 49
Solvent Atoms 68

Software

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