X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Microbatch
pH 8
Temperature 292.0
Details HEPES, NaCl, glycerol, NH4OAc, MgCl2, spermine, PEG4000, Tris-HCl, pH 8.0, microbatch, temperature 292.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 81.7 α = 90
b = 122.9 β = 90
c = 241.6 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-01-21
Diffraction Radiation
Monochromator Protocol
Bent triangular asymmetric cut Si(111) monochromater (provides horizontal focussing) Rh-coated Si mirror for vertical focussing SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F1 0.9480 CHESS F1

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
3.1 49.11 82.5 -- -- -- -- 44978 37121 0.0 0.0 --
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)
3.1 3.29 82.5 -- -- -- -- --

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 3.1 29.78 -- 0.0 44978 37086 1857 82.4 0.303 0.303 0.296 0.319 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 3.1 3.29 -- 271 5423 0.348 0.369 0.022 77.1
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 68.6
Anisotropic B[1][1] 2.56
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -3.96
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.4
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 4.19
c_scbond_it 3.34
c_mcangle_it 2.37
c_mcbond_it 1.3
c_improper_angle_d 1.11
c_bond_d 0.008
c_angle_deg 1.4
c_dihedral_angle_d 28.4
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.49
Luzzati Sigma A (Observed) 0.39
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.55
Luzzati Sigma A (R-Free Set) 0.29
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 13248
Nucleic Acid Atoms 1704
Heterogen Atoms 0
Solvent Atoms 0

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
CNS 1.1 Structure Refinement
Software
Software Name Purpose
CNS version: 1.1 refinement