X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Temperature 277.0
Details 22% PEG 8000 0.3M (NH4)2SO4 0.1M MOPS (PH 7.0) 4 DEG C, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 157.5 α = 90
b = 157.5 β = 90
c = 242.1 γ = 90
Symmetry
Space Group I 41 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1995-10
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 -- MPG/DESY, HAMBURG BW6

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
1.7 8 87.8 0.054 0.054 -- 3.0 -- 135354 -- 2.0 --
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)
1.73 1.87 66.0 0.054 0.245 2.0 2.0 --

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
MIR 1.7 10.0 -- 2.0 -- 135354 13520 87.8 -- 0.198 0.198 0.248 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 11.03
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.656
x_bond_d 0.008
x_angle_deg 0.94
x_dihedral_angle_d 26.48
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Resolution Cutoff (Low) 10.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8884
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 706

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (ROTAVATA, AGROVATA) Data Reduction (data scaling)
MLPHARE, SHELXS Structure Solution
SHELXS Structure Refinement
Software
Software Name Purpose
SHELXS refinement
SHELXS model building
MLPHARE model building