X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Temperature 293.0
Details 40% PEG-400, 0.1 M Imidazole pH 8.0, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 293K, pH 8.00

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 72.96 α = 90
b = 72.96 β = 90
c = 128.52 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315 -- 2001-12-11
Diffraction Radiation
Monochromator Protocol
DOUBLE CRYSTAL MONOCHROMATOR MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-2 0.97980, 0.93218, 0.97999 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
1.7 45.05 99.5 -- 0.07 -- 18.3 -- 39495 -- -- 23.99
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)
1.7 1.74 95.1 -- 0.506 2.8 8.2 --

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
MAD 1.8 20.0 -- 2.0 37372 37360 1914 100.0 -- 0.192 0.192 0.231 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 1.82 -- 47 912 0.2432 0.2985 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 27.7
Anisotropic B[1][1] -4.173
Anisotropic B[1][2] -1.479
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -4.173
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 8.345
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.94
c_mcangle_it 2.512
c_scangle_it 4.141
c_scbond_it 3.224
c_bond_d 0.021
c_mcbond_it 1.935
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.216
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2517
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 294

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
CCP4 data reduction
CCP4 model building
SOLVE phasing
RESOLVE model building
CNS refinement version: 1.0
CCP4 data scaling version: (SCALA)
CCP4 phasing
RESOLVE phasing