X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 8.5
Temperature 285.0
Details PEG 4000, tris, lithium sulfate, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 285K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 132.19 α = 90
b = 132.19 β = 90
c = 51.09 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 2003-09-03
Diffraction Radiation
Monochromator Protocol
MAR mirrors SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU300 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
2.1 30 98.9 0.085 -- -- 11.9 19443 19225 0.0 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)
2.1 2.23 98.2 0.383 -- 5.6 11.9 --

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
MIR 2.1 30.0 0.0 0.0 19443 19225 1910 98.9 -- -- 0.194 0.231 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 2.1 2.23 2874 321 -- 0.243 0.196 0.014 98.2
Temperature Factor Modeling
Temperature Factor Value
Anisotropic B[1][1] -2.13
Anisotropic B[1][2] 0.16
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -2.13
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 4.26
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.28941
c_bond_d 0.005329
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.22
Luzzati Sigma A (Observed) 0.1
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.27
Luzzati Sigma A (R-Free Set) 0.15
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2241
Nucleic Acid Atoms 0
Heterogen Atoms 8
Solvent Atoms 307

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
SOLVE phasing
CNS refinement