X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details SEE MACPHERSON ET AL. (1998) ACTA CRYST, D54, 654 - 656, pH 7.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 147.8 α = 90
b = 147.8 β = 90
c = 64.9 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU -- 1996-09-01
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE D2AM -- ESRF D2AM

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
2.8 20 98.3 0.132 -- -- 1.9 -- 20335 -- 4.0 --

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 2.8 15.0 -- 4.0 -- 17473 -- 84.75 -- -- 0.205 0.284 RANDOM
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 2.78 2.88 -- 54 1096 0.264 0.372 -- 56.81
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.009
x_angle_deg 1.74
Coordinate Error
Parameter Value
Luzzati Resolution Cutoff (Low) 15.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2805
Nucleic Acid Atoms 0
Heterogen Atoms 48
Solvent Atoms 106

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CCP4 Structure Solution
X-PLOR 3.84 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.84 refinement
CCP4 model building
SCALEPACK data reduction
DENZO data collection