X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 277.0
Details glycerol, ammonium sulfate, HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 89.56 α = 90
b = 89.56 β = 90
c = 351.66 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 -- 2001-02-15
Diffraction Radiation
Monochromator Protocol
double crystal SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-2 1.008 SSRL BL9-2

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
2.8 58.16 96.4 -- 0.064 -- 13.8 19709 19709 0.0 0.0 56.2
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)
2.85 2.98 88.3 -- 0.516 2.7 2.5 2456

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 2.85 10.0 -- 2.0 19992 18476 898 92.4 -- -- 0.274 0.299 random
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 68.85
Anisotropic B[1][1] 15.51
Anisotropic B[1][2] 26.06
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 17.5
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -33.01
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.7
c_bond_d 0.012
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.46
Luzzati Sigma A (Observed) 0.73
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.53
Luzzati Sigma A (R-Free Set) 0.83
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3193
Nucleic Acid Atoms 0
Heterogen Atoms 39
Solvent Atoms 101

Software

Software
Software Name Purpose
CNS refinement
DENZO data reduction
SCALEPACK data scaling
CNS phasing