X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.6
Temperature 298.0
Details 2.5M Na2SO4, 0.1M triNa citrate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 71.16 α = 90
b = 104.38 β = 90
c = 58.16 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD SBC-2 mirrors 2001-11-19
Diffraction Radiation
Monochromator Protocol
Si 111 channel MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID 0.9795,0.9798,0.94656 APS 19-ID

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
1.97 50 94.4 0.11 -- -- 6.0 31422 29674 4.0 4.0 11.9
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)
1.97 2.05 79.5 0.537 -- 1.63 4.81 2739

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 2.0 42.09 -- 0.0 56561 50697 2466 89.6 -- 0.237 0.237 0.248 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 2.0 2.13 -- 348 6563 0.352 0.357 0.019 73.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 31.7
Anisotropic B[1][1] 11.56
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -8.3
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -3.26
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.3
c_dihedral_angle_d 23.7
c_bond_d 0.009
c_improper_angle_d 0.75
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.31
Luzzati Sigma A (R-Free Set) 0.39
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3492
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 307

Software

Software
Software Name Purpose
CNS refinement version: 0.9
DTCOLLECT data reduction
HKL-2000 data scaling
CNS phasing