X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.8
Temperature 277.0
Details 20% PEG 2000, 12% ethylene glycol, 0.12M Na-Hepes, 10mM BH4, 30mM Na-dithionite, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 65.19 α = 90
b = 107.86 β = 90
c = 123.44 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2002-02-02
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-1 0.934 ESRF ID14-1

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 20 93.1 0.081 0.081 -- 4.1 27721 27721 0.0 0.0 20.4
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)
2.0 2.11 66.0 0.235 0.235 3.0 4.1 2816

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
phases adopted from 1KW0 2.0 20.0 0.0 0.0 27721 27721 2803 100.0 -- -- 0.199 0.229 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 2.0 2.01 268 24 -- 0.237 0.222 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model overall anisotropic b value
Mean Isotropic B 26.8
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 21.5
c_bond_d 0.006
c_angle_deg 1.14
c_improper_angle_d 0.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Sigma A (Observed) 0.18
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.27
Luzzati Sigma A (R-Free Set) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2532
Nucleic Acid Atoms 0
Heterogen Atoms 34
Solvent Atoms 182

Software

Software
Software Name Purpose
DENZO data reduction
SCALA data scaling
CNS refinement version: 1.0
CCP4 data scaling version: (SCALA)