X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.3
Details 25-27% PEG8000, 100 MM PHOSPHORYLETHANOLAMINE, pH 4.3

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 44.2 α = 90
b = 77.16 β = 90
c = 107.48 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
IMAGE PLATE MARRESEARCH -- 1998-05-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE DW32 -- LURE DW32

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
2.25 29 90.8 0.057 4.9 -- 3.9 -- 16450 -- 1.0 24.7
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 2.41 88.8 0.122 10.6 7.1 3.8 --

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 2.25 12.5 -- 0.0 16289 16289 1625 90.0 -- -- 0.208 0.279 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 24.37
RMS Deviations
Key Refinement Restraint Deviation
p_mcangle_it 2.799
p_multtor_nbd 0.258
p_staggered_tor 17.0
p_chiral_restr 0.14
p_planar_tor 5.2
p_scangle_it 3.831
p_bond_d 0.014
p_special_tor 15.0
p_mcbond_it 1.855
p_angle_d 0.042
p_transverse_tor 25.8
p_singtor_nbd 0.185
p_scbond_it 2.493
p_planar_d 0.042
p_plane_restr 0.0338
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2940
Nucleic Acid Atoms 0
Heterogen Atoms 16
Solvent Atoms 164

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
AMORE Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
AMORE model building