X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.8
Details 16% PEG 4000, 0.1M NA-HEPES PH7,5, pH 6.80

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 55.73 α = 90
b = 55.73 β = 90
c = 187.51 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- -- -- 2002-02-15
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM30A 0.9797,0.9803,0.98,0.9825 ESRF BM30A

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
2.03 25 99.7 0.065 -- -- 5.1 -- 11970 -- -- 15.0
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)
2.03 2.08 98.1 0.296 -- 2.5 -- --

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
MAD 2.03 20.0 -- 0.0 -- 11849 607 99.6 -- 0.2173 0.2173 0.2474 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 2.03 2.09 -- 48 896 0.2384 0.2955 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 26.0
Anisotropic B[1][1] -0.631
Anisotropic B[1][2] 0.087
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.631
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.262
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.2
c_dihedral_angle_d 22.7
c_bond_d 0.006
c_improper_angle_d 0.75
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.22
Luzzati Resolution Cutoff (Low) 20.0
Luzzati Sigma A (R-Free Set) 0.16
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1089
Nucleic Acid Atoms 0
Heterogen Atoms 6
Solvent Atoms 63

Software

Software
Software Name Purpose
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling