X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 5.7
Temperature 289.0
Details 4-8% (w/v) PEG4000, 20% Isopropanol, 100mM sodium citrate, pH 5.7, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 77.43 α = 90
b = 29.09 β = 121.64
c = 54.64 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-06-25
Diffraction Radiation
Monochromator Protocol
Si (111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX14.2 0.979 SRS PX14.2

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
1.8 26.7 96.9 0.041 0.035 -- 3.7 9866 9604 0.0 0.0 10.276
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)
1.8 1.9 90.6 0.073 0.062 9.6 3.4 1275

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 1.8 26.7 -- 0.0 9565 9565 498 96.9 -- -- 0.187 0.233 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 1.8 1.87 900 51 -- 0.21 0.235 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model anisotropic
Anisotropic B[1][1] 2.125
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -0.017
Anisotropic B[2][2] -2.095
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.03
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 26.419
c_scangle_it 9.501
c_scbond_it 7.266
c_mcangle_it 5.479
c_angle_deg 1.448
c_bond_d 0.005
c_improper_angle_d 0.615
c_mcbond_it 4.827
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.23
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.06
Luzzati Sigma A (R-Free Set) 0.11
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 809
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 103

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
AMoRE phasing
CNS refinement version: 1.0
CCP4 data scaling version: (SCALA)