X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.8
Temperature 277.0
Details PEG 4000, sodium acetate, sodium chloride, pH 4.8, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 72.6 α = 90
b = 113.5 β = 90
c = 193.9 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 70
2 70
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH Double focussing X-ray optics 1999-06-30
CCD MARRESEARCH Double focussing X-ray optics 1999-11-29
Diffraction Radiation
Monochromator Protocol
double crystal monochromator, Si(111), 1st crystal water cooled MAD
double crystal monochromator, Si(111), 1st crystal water cooled SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 1.07, 1.005, 1.009, 1.733, 1.740 MPG/DESY, HAMBURG BW6
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 1.06 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
1.6 30 92.6 -- 0.063 -- 3.3 2800231 196086 0.0 0.0 14.3
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)
1.6 1.66 80.5 -- -- -- -- --

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/MIR 1.6 27.59 0.0 0.0 196086 191026 9526 90.5 -- 0.18 0.18 0.202 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 1.6 1.7 -- 1375 26122 0.198 0.226 0.006 79.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 15.9
Anisotropic B[1][1] 0.89
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.07
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -3.96
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 1.48
c_dihedral_angle_d 22.9
c_scbond_it 1.66
c_improper_angle_d 1.25
c_mcbond_it 0.99
c_angle_deg 1.4
c_scangle_it 2.4
c_bond_d 0.01
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.16
Luzzati Sigma A (Observed) 0.07
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.18
Luzzati Sigma A (R-Free Set) 0.1
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 12670
Nucleic Acid Atoms 0
Heterogen Atoms 162
Solvent Atoms 1608

Software

Software
Software Name Purpose
SHELXS phasing
MLPHARE phasing
SHARP phasing
DM model building
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling
DM phasing