X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 9
Details HANGING DROP, 18 DEGREES C, OVER RESERVOIR 0.1 M TRIS/HCL, PH 9.0, 5% MPD, 1MM EDTA, 1.9 M AMMONIUM SULPHATE. DROP MADE UP BY MIXING 1:1 PROTEIN SOLUTION (CONTAINING 20 MG/ML A1 SUBUNIT IN 0.1 M TRIS-HCL, PH 7.0, 1 MM EDTA) AND OF THE RESERVOIR SOLUTION.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 41.65 α = 90
b = 80.68 β = 90
c = 110.84 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
CCD ADSC -- 2000-08-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

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
1.35 100 88.4 0.05 -- -- 8.01 -- 73302 -- -- --
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)
1.35 1.42 81.8 0.117 -- 7.3 -- --

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
SIRAS 1.4 100.0 -- 0.0 60276 -- 3137 80.1 -- 0.1766 -- 0.2293 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_similar_adp_cmpnt 0.052
s_rigid_bond_adp_cmpnt 0.004
s_anti_bump_dis_restr 0.012
s_non_zero_chiral_vol 0.064
s_zero_chiral_vol 0.059
s_from_restr_planes 0.0292
s_angle_d 0.028
s_bond_d 0.011
Coordinate Error
Parameter Value
Number Disordered Residues 30.0
Occupancy Sum Non Hydrogen 3377.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2902
Nucleic Acid Atoms 0
Heterogen Atoms 32
Solvent Atoms 439

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement