X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.2
Details 2.2M AMMONIUM SULFATE, 10% 1-PROPANOL, PH4.2 1.5% PROTEIN, 2MM (GLCNAC)3

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 87.49 α = 90
b = 32.94 β = 119.1
c = 49 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR ENRAF-NONIUS FAST -- 1990-02
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ELLIOTT GX-21 -- -- --

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
1.75 23.4 86.0 0.058 -- -- 4.6 -- 10950 -- 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)
1.76 1.79 -- 0.225 -- -- -- --

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 1.77 10.0 -- 2.0 -- 10546 -- 87.4 -- 0.182 0.182 0.225 --
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 1.77 1.8 -- -- 110 0.251 0.218 -- 19.0
RMS Deviations
Key Refinement Restraint Deviation
x_mcbond_it 1.5
x_scbond_it 1.5
x_mcangle_it 2.0
x_bond_d 0.013
x_angle_deg 2.7
x_scangle_it 2.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 994
Nucleic Acid Atoms 0
Heterogen Atoms 48
Solvent Atoms 84

Software

Software
Software Name Purpose
MADNES data collection
MERGEF data reduction
X-PLOR model building version: 3.1
X-PLOR refinement version: 3.1
MADNES data reduction
MERGEF data scaling
X-PLOR phasing version: 3.1