X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 6.4
Details PRECIPITANT: AMMONIUM SULFATE 1.2 M. BUFFER: PYROPHOSPHATE 0.2 M PH 6.4. ADDITIVES: ETHYLENE GLYCOL 3% V/V. PROTEIN CONCENTRATION 25 MG/ML. VAPOR DIFFUSION TECHNIQUES. AZIDE SOAKING CONDITIONS: 0.03 M N3-, 1 HOUR, PH 7.0, vapor diffusion

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 62.72 α = 90
b = 40.19 β = 106.55
c = 62.94 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE AREA DETECTOR MAR RESEARCH 180MM IMAGE PLATE -- 1996-10
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

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
1.76 15 94.0 0.049 0.049 -- 2.5 -- 29076 -- 1.0 --
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)
1.76 1.83 94.1 0.275 0.049 2.0 2.5 --

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
DIFFERENCE FOURIER 1.76 15.0 -- 0.0 -- 29629 -- 92.0 -- -- 0.197 -- --
RMS Deviations
Key Refinement Restraint Deviation
t_it 4.932
t_dihedral_angle_d 14.254
t_angle_deg 1.987
t_incorr_chiral_ct 0.0
t_gen_planes 0.02
t_nbd 0.054
t_bond_d 0.013
t_trig_c_planes 0.019
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2077
Nucleic Acid Atoms 0
Heterogen Atoms 92
Solvent Atoms 184

Software

Software
Software Name Purpose
TNT refinement
DENZO data reduction
SCALEPACK data scaling
TNT phasing