X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 295.0
Details 10 mM Tirs, 20%pEG3350, 200mM Potassium thiocyanate, 50 mM NaCl, 10 mM DTT, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.31 α = 90
b = 73.52 β = 90
c = 109.47 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 -- 2002-11-10
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A 0.989 NSLS X4A

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 30 -- 0.062 0.056 -- 2.27 -- 62402 -- -- 16.3

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
SAD 2.0 29.52 -- 2.0 -- 54895 5375 85.0 0.22 0.214 0.214 0.264 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 2.13 -- 628 5902 0.227 0.261 0.01 60.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 35.6
Anisotropic B[1][1] -0.11
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.4
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.51
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.13
c_scbond_it 2.18
c_mcangle_it 2.53
c_mcbond_it 1.56
c_improper_angle_d 0.67
c_bond_d 0.008
c_angle_deg 1.1
c_dihedral_angle_d 22.9
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.24
Luzzati Sigma A (Observed) 0.16
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.3
Luzzati Sigma A (R-Free Set) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3835
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 320

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SOLVE Structure Solution
CNS 1.1 Structure Refinement
Software
Software Name Purpose
CNS version: 1.1 refinement