X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7
Temperature 295.0
Details phosphate, imidazole, pH 7.0, VAPOR DIFFUSION, SITTING DROP at 295K, temperature 295.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 73.08 α = 90
b = 70.64 β = 93.78
c = 74.3 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV -- 2001-03-12
Diffraction Radiation
Monochromator Protocol
mirror SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 1.5418 -- --

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
1.85 30 89.5 0.072 -- -- 2.9 64360 57602 0.0 0.0 13.9
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)
1.85 1.92 57.7 0.28 -- 3.0 1.7 3709

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
refined directly 1.85 30.0 0.0 0.0 64549 57663 5835 89.3 -- -- 0.168 0.195 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 1.85 1.96 7050 687 -- 0.225 0.2508 -- --
X Ray Diffraction 1.96 2.12 9754 1001 -- 0.1846 0.2268 -- --
X Ray Diffraction 2.12 2.33 9955 1038 -- 0.1764 0.2151 -- --
X Ray Diffraction 2.33 2.67 10195 1034 -- 0.1782 0.2113 -- --
X Ray Diffraction 2.67 3.36 10372 1033 -- 0.1732 0.2029 -- --
X Ray Diffraction 3.36 30.0 10337 1042 -- 0.1452 0.1607 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Isotropic
Mean Isotropic B 23.9
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.87
c_dihedral_angle_d 24.1
c_angle_deg 1.4
c_bond_d 0.005
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.15
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.21
Luzzati Sigma A (R-Free Set) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6016
Nucleic Acid Atoms 0
Heterogen Atoms 118
Solvent Atoms 457

Software

Computing
Computing Package Purpose
R-AXIS, DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement