X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4
Details 10 % PEG 4000, 100 MM LITHIUM SULPHATE 100 MM SODIUM ACETATE, PH 4.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 59.02 α = 90
b = 59.02 β = 90
c = 66.97 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC -- 1998-12-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-4 -- ESRF ID14-4

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
1.65 28 99.4 -- 0.056 -- 8.7 -- 16570 -- -- 29.133
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)
1.65 1.71 99.3 -- 0.268 3.8 3.4 --

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 1.65 28.0 -- 0.0 -- 15811 843 99.4 -- 0.23538 0.20774 0.26593 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 34.031
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 0.0
p_transverse_tor 16.7
p_staggered_tor 14.8
p_planar_tor 4.7
p_xyhbond_nbd 0.098
p_xhyhbond_nbd 0.0
p_multtor_nbd 0.264
p_bond_d 0.016
p_angle_d 0.033
p_planar_d 0.042
p_mcbond_it 2.66
p_mcangle_it 3.812
p_scbond_it 4.395
p_scangle_it 5.607
p_plane_restr 0.0242
p_chiral_restr 0.127
p_singtor_nbd 0.19
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 974
Nucleic Acid Atoms 0
Heterogen Atoms 5
Solvent Atoms 95

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SOLVE Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
SOLVE model building