X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.6
Temperature 303.0
Details PEG4000, ammonium sulfate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 303K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 37.98 α = 90
b = 75.82 β = 90
c = 159.64 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV mirrors 2001-09-01
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU 1.54 -- --

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
2.5 30 97.7 -- 0.039 -- -- -- 8130 -- -3.0 25.5

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 2.5 20.35 -- 0.0 -- 8130 866 97.6 -- 0.198 0.198 0.271 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 2.5 2.66 -- 128 1131 0.217 0.328 0.029 94.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 30.1
Anisotropic B[1][1] -9.37
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 9.39
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.02
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.49
c_scbond_it 2.36
c_mcangle_it 2.25
c_mcbond_it 1.37
c_improper_angle_d 1.58
c_bond_d 0.021
c_angle_deg 2.1
c_dihedral_angle_d 26.1
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.4
Luzzati Sigma A (R-Free Set) 0.39
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1481
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 74

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
R-AXIS Data Reduction (data scaling)
SOLVE Structure Solution
CNS 1.1 Structure Refinement
Software
Software Name Purpose
CNS version: 1.1 refinement
SOLVE model building
R-AXIS data reduction
DENZO data collection