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 ammonium sulfate, sodium acetate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Method Vapor Diffusion Hanging Drop
pH 4.6
Temperature 298.0
Details Peg 4000, sodium citrate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Method Vapor Diffusion Hanging Drop
pH 4.6
Temperature 298.0
Details Peg 4000, sodium citrate, spermine or B-octylglucosite, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 71.69 α = 90
b = 108.75 β = 90
c = 91.97 γ = 90
Symmetry
Space Group P 2 2 21

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1997-11-01
CCD ADSC QUANTUM 4 -- 1999-05-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X9B 0.9791, 0.9784, 0.9801 NSLS X9B
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 0.9 EMBL/DESY, Hamburg X11

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
2.15 40 99.2 0.053 -- -- 6.1 19906 19747 0.0 -3.0 --
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)
2.15 2.17 77.3 0.384 -- 3.2 4.0 514

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 2.15 20.0 0.5 0.0 19729 19151 1947 -- -- -- 0.21 0.27 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 2.153 2.254 2012 214 -- 0.225 0.299 -- 92.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model isotropic
Mean Isotropic B 34.6
RMS Deviations
Key Refinement Restraint Deviation
p_angle_d 0.023
p_bond_d 0.008
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1970
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 170

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
MLPHARE phasing
REFMAC refinement