X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 8
Temperature 293.0
Details 20% PEG 2000, 0.1 M ammonium sulfate, 0.1 M Tris/HCl pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 293.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 62 α = 112.76
b = 118.18 β = 94.93
c = 133.59 γ = 91.14
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
2 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH undulator 2000-04-12
CCD MARRESEARCH undulator 2000-09-07
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 1.05030 MPG/DESY, HAMBURG BW6
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 1.00500, 1.00920, 0.95000 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
1.78 19.25 -- -- -- -- -- 320230 320230 -- -- 22.0

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 1.8 19.25 -- 0.0 -- 309996 15446 96.2 0.217 0.217 0.217 0.252 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 1.8 1.91 -- 2605 48262 0.336 0.358 0.007 94.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 36.2
Anisotropic B[1][1] 5.97
Anisotropic B[1][2] 1.26
Anisotropic B[1][3] -0.75
Anisotropic B[2][2] -5.66
Anisotropic B[2][3] 0.24
Anisotropic B[3][3] -0.31
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 1.96
c_angle_deg 1.5
c_bond_d 0.009
c_scbond_it 2.02
c_improper_angle_d 0.89
c_mcbond_it 1.31
c_scangle_it 2.9
c_dihedral_angle_d 25.2
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.29
Luzzati Sigma A (R-Free Set) 0.32
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 23864
Nucleic Acid Atoms 0
Heterogen Atoms 504
Solvent Atoms 1468

Software

Software
Software Name Purpose
CNS refinement version: 1.1
DENZO data reduction
SCALEPACK data scaling
MAIN phasing