X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details SEE PRIMARY REFERENCE , pH 8.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 142.26 α = 90
b = 142.26 β = 90
c = 174.94 γ = 90
Symmetry
Space Group I 4

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 93
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD CORNELL -- 1997-08
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 -- 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
2.9 100 86.4 0.095 0.095 -- 3.0 -- 34001 -- 0.0 39.3
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)
2.9 3.0 56.0 0.338 0.338 3.0 1.5 --

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
MOLECULAR REPLACEMENT 2.9 100.0 -- 0.0 -- 33236 3199 86.4 -- -- 0.244 0.27 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 2.9 3.0 -- 218 1927 0.404 0.413 0.028 56.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 38.6
Anisotropic B[1][1] -1.96
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.96
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 3.92
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.61
c_scbond_it 2.27
c_mcangle_it 2.96
c_mcbond_it 1.73
c_improper_angle_d 1.05
c_bond_d 0.012
c_angle_deg 1.9
c_dihedral_angle_d 23.1
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.43
Luzzati Sigma A (Observed) 0.56
Luzzati Resolution Cutoff (Low) 6.0
Luzzati ESD (R-Free Set) 0.47
Luzzati Sigma A (R-Free Set) 0.64
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5360
Nucleic Acid Atoms 0
Heterogen Atoms 145
Solvent Atoms 31

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR 3.853, CNS 0.3 Structure Solution
CNS 0.3 Structure Refinement
Software
Software Name Purpose
CNS version: 0.3 refinement
CNS version: 0.3 model building
X-PLOR version: 3.853 model building