X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.5
Details 200 MM AMMONIUM ACETATE, 100 MM NA ACETATE PH 5.5, 15% PEG

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.45 α = 90
b = 73.74 β = 113.46
c = 57.04 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
-- -- -- 2000-02-15
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-4 0.9393, 0.9787, 0.9791 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
2.6 30 97.9 0.066 -- -- 6.2 -- 11678 -- -- 55.8
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)
2.6 2.74 98.1 0.235 -- 5.9 5.8 --

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
MAD 2.6 30.0 -- 0.0 -- 11678 581 97.9 -- 0.22 0.22 0.282 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 2.6 2.68 -- 65 978 0.323 0.467 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 43.27
Anisotropic B[1][1] 3.52
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -1.53
Anisotropic B[2][2] -5.84
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 2.315
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 0.0
c_scbond_it 0.0
c_mcangle_it 0.0
c_mcbond_it 0.0
c_bond_d 0.008
c_angle_deg 1.376
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2988
Nucleic Acid Atoms 0
Heterogen Atoms 32
Solvent Atoms 69

Software

Computing
Computing Package Purpose
CNS 1.0 Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS version: 1.0 model building