X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details PROTEIN 19.4 MG/ML IN 0.05 M POTASSIUM PHOSPHATE PH 7.5, 1MM EDTA, 0.4 MM DTT MIXED WITH RESERVOIR 1:1 CONTAINING 1.5-2.1 M AMMONIUM SULFATE, 10 MM COCL2, 0.1 M MES PH 6.5,

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 68.4 α = 90
b = 68.4 β = 90
c = 185.4 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-01-09
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ELLIOTT GX-18 -- -- --

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 20 98.8 0.064 -- -- 6.6 -- 17903 -- 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)
2.0 2.11 96.2 0.311 -- 2.4 4.5 --

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
MULTIPLE ISOMORPHOUS REPLACEMENT 2.0 15.0 -- 0.0 -- 17833 -- 98.8 -- 0.192 0.192 0.243 --
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 2.0 2.03 -- 81 720 0.373 0.414 -- 94.4
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 32.1
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 2.4
x_bond_d 0.011
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1561
Nucleic Acid Atoms 0
Heterogen Atoms 5
Solvent Atoms 106

Software

Software
Software Name Purpose
X-PLOR model building version: 3.1
X-PLOR refinement version: 3.1
MOSFLM data reduction
CCP4 data scaling version: (SCALA)
X-PLOR phasing version: 3.1