X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7.5
Temperature 22.5
Details 10mM DTT, 10mM Tris pH 7.5, 25 mM NaCl, 1.6 M Ammonium Sulfate, VAPOR DIFFUSION, SITTING DROP, temperature 22.5K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 106.22 α = 90
b = 106.22 β = 90
c = 222.21 γ = 120
Symmetry
Space Group P 65 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
2 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2000-12-20
CCD ADSC QUANTUM 4 -- 2001-01-07
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-2 1.07167,1.07198,0.86095 SSRL BL9-2
SYNCHROTRON ALS BEAMLINE 5.0.2 1.1 ALS 5.0.2

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
1.63 20 97.9 0.054 -- -- -- 95669 95669 2.0 2.0 --
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)
1.63 1.66 90.7 0.406 -- -- -- --

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 1.63 20.0 -- 0.0 95669 95669 4783 -- 0.19 0.19 0.19 0.219 random
RMS Deviations
Key Refinement Restraint Deviation
s_bond_d 0.008
s_angle_d 2.1
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.1843
Luzzati Sigma A (Observed) 0.1668
Luzzati Resolution Cutoff (Low) 20.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4351
Nucleic Acid Atoms 0
Heterogen Atoms 9
Solvent Atoms 436

Software

Software
Software Name Purpose
SOLVE phasing
ARP/wARP model building
SHELXL-97 refinement
DENZO data reduction
SCALEPACK data scaling