X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 277.15
Details ammonium sulfate, NaCl, HEPES buffer, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277.15K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 46.7 α = 90
b = 67.86 β = 90
c = 91.47 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2000-11-08
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 1.00 ALS 5.0.2

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
1.4 20 95.2 0.057 -- -- 9.0 54370 54730 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)
1.4 1.42 67.2 0.427 -- 2.4 3.0 1910

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 map 1.4 20.0 0.0 0.0 53429 53429 5425 92.0 -- -- 0.159 0.223 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model anisotropic
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.02
c_improper_angle_d 2.05
c_dihedral_angle_d 24.2
c_angle_deg 2.6
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.16
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.21
Luzzati Sigma A (R-Free Set) 0.16
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2202
Nucleic Acid Atoms 0
Heterogen Atoms 19
Solvent Atoms 344

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
CNS, SHELX-97 Structure Refinement
Software
Software Name Purpose
CNS refinement
SHELX-97 refinement
CNS model building