X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details 15% PEG 1000, 15% ETHYLENE GLYCOL, 100 MM CACODYLATE (PH 6)

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 65.2 α = 90
b = 67.99 β = 104.01
c = 129.73 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- ADSC -- 2001-02-15
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
2.7 41 99.3 -- 0.062 -- 3.2 -- 28735 -- -- 67.6
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)
2.7 2.78 99.3 -- 0.288 2.6 3.0 --

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 2.7 41.0 -- 0.0 -- 30333 1474 99.3 -- 0.226 0.226 0.295 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 2.7 2.8 -- 18 2961 0.253 0.329 -- 99.3
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 55.4
Anisotropic B[1][1] 7.13
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.438
Anisotropic B[2][2] -7.426
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.296
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 8.11
c_scbond_it 5.28
c_mcangle_it 5.77
c_mcbond_it 3.42
c_bond_d 0.007
c_angle_deg 1.3
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.34
Luzzati Sigma A (Observed) 0.23
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.49
Luzzati Sigma A (R-Free Set) 0.45
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8151
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 157

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SOLVE/RESOLVE Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
SOLVE/RESOLVE model building