X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details 100 MM MES/NAOH PH 6.5, 2.5 M AMMONIUM SULFATE, 10% OCTANOL, 1 MM DTT, 1 MM EDTA, 1 MM NA-AZIDE, 1 MM ACETOACETYL-COA.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 75.97 α = 90
b = 93.64 β = 90
c = 246.82 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-05-14
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 -- 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
2.5 28.6 95.7 0.068 -- -- 4.2 -- 58197 -- 0.0 22.77
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)
2.5 2.59 97.8 0.18 -- 5.6 3.7 --

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
MIR 2.5 8.0 -- 0.0 -- 58197 1688 92.9 -- 0.209 0.209 0.265 X-PLOR
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 2.5 2.61 -- 223 7108 0.269 0.338 -- 94.5
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 21.05
RMS Deviations
Key Refinement Restraint Deviation
x_dihedral_angle_d 23.8
x_improper_angle_d 1.49
x_angle_deg 1.63
x_bond_d 0.014
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 11836
Nucleic Acid Atoms 0
Heterogen Atoms 270
Solvent Atoms 595

Software

Software
Software Name Purpose
MLPHARE phasing
X-PLOR refinement version: 3.1
DENZO data reduction