X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Microdialysis
pH 5.5
Temperature 298.0
Details protein: 15mg/ml in acetate buffer (0.05M) plus sodium azide (10-5M). Sodium formate as the crystallizing agent(4M). Crystals as elongated needles in two weeks., pH 5.50, MICRODIALYSIS, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 76.5 α = 90
b = 55.3 β = 90
c = 53.4 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 278
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-10-20
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE DW32 -- LURE DW32

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
2.16 15 0.83 0.062 -- -- 4.1 44356 40233 3.0 4.0 24.0
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)
2.16 2.27 65.0 0.167 -- -- 2.8 1172

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
-- 2.16 7.0 4.0 3.0 11117 9455 1010 85.0 0.1624 0.151 0.151 0.198 random
RMS Deviations
Key Refinement Restraint Deviation
s_angle_d 0.023
s_bond_d 0.006
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1918
Nucleic Acid Atoms 0
Heterogen Atoms 12
Solvent Atoms 108

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement