X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.5
Details 3M AMMONIUM NITRATE SOLUTION WITH PH 4.5 ACETATE BUFFER AND 2% PROTEIN, VAPOR DIFFUSION OVER 5M AMMONIUM NITRATE AT ROOM TEMPERATURE.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 57.05 α = 90
b = 60.96 β = 90
c = 32.96 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 285
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR ENRAF-NONIUS -- 1996-01
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ENRAF-NONIUS FR571 -- -- --

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
1.14 25.1 92.1 0.054 -- -- 4.4 -- 39326 -- 0.0 --
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)
1.14 1.16 43.8 0.267 -- -- -- --

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
MOLECULAR REPLACEMENT 1.15 25.9 -- 0.0 39270 -- -- 92.1 0.115 0.112 -- 0.157 --
RMS Deviations
Key Refinement Restraint Deviation
s_zero_chiral_vol 0.081
s_bond_d 0.014
s_from_restr_planes 0.197
Coordinate Error
Parameter Value
Number Disordered Residues 6.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1061
Nucleic Acid Atoms 0
Heterogen Atoms 28
Solvent Atoms 164

Software

Software
Software Name Purpose
MADNES data collection
MERGEF data reduction
SHELXL-93 model building
X-PLOR model building
SHELXL-93 refinement
X-PLOR refinement
MADNES data reduction
MERGEF data scaling
SHELXL-93 phasing
X-PLOR phasing