X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 277.0
Details 16-18% PEG 8000, 200mM Ca(OAC)2, 100mM sodium cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 92.37 α = 90
b = 92.37 β = 90
c = 211.28 γ = 120
Symmetry
Space Group P 65 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-04-09
Diffraction Radiation
Monochromator Protocol
-- single wavelength
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 0.93 CHESS A1

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
2.2 30 95.1 0.061 -- -- 5.05 34926 33215 -- 1.0 30.3
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)
2.2 2.34 92.4 0.353 -- 5.6 -- --

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
MOLECULAR REPLACEMENT 2.2 29.07 0.0 0.0 27897 26745 1294 95.9 -- 0.242 0.242 0.273 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 2.2 2.34 -- 202 3973 0.331 0.342 0.024 92.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 52.0
Anisotropic B[1][1] 5.08
Anisotropic B[1][2] 4.21
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 5.08
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -10.15
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.8
c_scbond_it 1.83
c_mcangle_it 2.15
c_mcbond_it 1.29
c_improper_angle_d 0.94
c_dihedral_angle_d 20.8
c_angle_deg 1.2
c_bond_d 0.006
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.39
Luzzati Sigma A (R-Free Set) 0.4
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2440
Nucleic Acid Atoms 598
Heterogen Atoms 1
Solvent Atoms 153

Software

Computing
Computing Package Purpose
HKL-2000 Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS model building
SCALEPACK data reduction
HKL-2000 data collection