X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details THE CRYSTALLISATION DROPS CONTAINED A 1:1 MIXTURE OF PURIFIED COMPLEX SOLUTION (0.55 MG/ML PROTEIN AND 0.5 MM INHIBITOR SOLUTION CONCENTRATED TO ~4 MG/ML IN 20 MM TRIS- HCL PH 7.5, 2 MM CACL2, 50 MM NACL) AND RESERVOIR BUFFER (3.6 M NACL, 0.1 M HEPES PH 7.5).

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 56.01 α = 90
b = 56.01 β = 90
c = 262.65 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CCD SILICON MIRROR 1999-08-25
Diffraction Radiation
Monochromator Protocol
SI(III) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

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
2.3 51.3 88.0 0.117 0.117 -- 4.5 -- 17375 -- -- 28.3
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)
2.3 2.44 83.0 0.479 0.479 4.2 4.4 --

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
MOLECULAR REPLACEMENT 2.3 51.3 -- 0.0 -- 17375 684 88.3 -- -- 0.207 0.239 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 2.3 2.38 -- 68 1517 0.277 0.338 0.041 83.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 28.0
Anisotropic B[1][1] -5.43
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -5.43
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 10.86
RMS Deviations
Key Refinement Restraint Deviation
c_scbond_it 2.67
c_scangle_it 3.86
c_mcbond_it 1.71
c_mcangle_it 2.71
c_bond_d 0.006
c_dihedral_angle_d 23.4
c_angle_deg 1.2
c_improper_angle_d 0.77
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.28
Luzzati Sigma A (Observed) 0.28
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.32
Luzzati Sigma A (R-Free Set) 0.36
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2512
Nucleic Acid Atoms 0
Heterogen Atoms 58
Solvent Atoms 120

Software

Software
Software Name Purpose
CNX refinement version: 2000
MOSFLM data reduction
SCALA data scaling
AMoRE phasing