X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.25
Temperature 277.0
Details PEG 8000, ammonium sulfate, (2-acetamido)iminodiacetic acid, sodium phosphate, potassium chloride, pH 6.25, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 105.2 α = 90
b = 105.2 β = 90
c = 125.4 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2001-09-22
Diffraction Radiation
Monochromator Protocol
-- MAD
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 -- MPG/DESY, HAMBURG BW6

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 20 97.3 -- 0.076 -- 5.2 -- n/a -- 1.5 54.2
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 2.76 99.3 -- 0.349 1.9 -- --

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 16.99 -- 0.0 23587 21577 2142 97.3 -- 0.234 0.234 0.26 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 2.76 -- 373 3244 0.411 0.421 0.022 99.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Anisotropic B[1][1] 9.79
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 9.79
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -19.59
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 8.78
c_scangle_it 12.56
c_angle_deg 1.4
c_scbond_it 8.38
c_mcbond_it 5.41
c_dihedral_angle_d 23.3
c_bond_d 0.007
c_improper_angle_d 0.89
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.45
Luzzati Sigma A (Observed) 0.57
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.53
Luzzati Sigma A (R-Free Set) 0.59
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1893
Nucleic Acid Atoms 0
Heterogen Atoms 5
Solvent Atoms 130

Software

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