X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 9.5
Temperature 293.0
Details 10 % PEG 8000, 0.2 M NaCl, 0.1 M CHES pH 9.5, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 293K, pH 9.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 113.78 α = 90
b = 113.78 β = 90
c = 81.31 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315 -- 2002-04-28
Diffraction Radiation
Monochromator Protocol
DOUBLE CRYSTAL MONOCHROMATOR MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-2 0.978932, 0.979224, 0.918370 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
1.91 46.61 99.2 -- 0.082 -- 3.8 -- 47228 -- -- 31.75
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)
2.25 2.31 99.7 -- 0.356 3.8 3.9 --

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 1.9 46.61 -- 0.0 -- 47228 2359 98.1 -- 0.175 0.175 0.202 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 1.9 1.99 -- 265 4845 0.2327 0.2534 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 24.1
Anisotropic B[1][1] 2.756
Anisotropic B[1][2] 1.16
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 2.774
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -5.53
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 3.749
c_angle_deg 1.79
c_mcangle_it 4.215
c_scbond_it 5.704
c_scangle_it 6.953
c_bond_d 0.016
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.74
Luzzati Resolution Cutoff (Low) 6.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3235
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 174

Software

Software
Software Name Purpose
Blu-Ice data collection
MOSFLM data reduction
SCALA data scaling
CCP4 data reduction
SnB phasing
MLPHARE phasing
CCP4 model building
SOLVE phasing
CNS refinement
CCP4 data scaling version: (SCALA)
RESOLVE phasing