X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.65
Details PROTEIN WAS CRYSTALLISED FROM 22-24% PEG 4000 60MM TRIS-HCL, pH 8.65

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 82.51 α = 90
b = 92.52 β = 90
c = 148.05 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS -- 1998-01-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

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
2.5 30 63.0 0.097 -- -- 1.7 -- 49354 -- -- --
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)
2.5 2.6 47.5 0.254 -- 2.7 1.3 --

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
OTHER 2.5 30.0 -- 0.0 -- 49347 2444 63.0 -- 0.204 0.204 0.254 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 2.5 2.61 -- 188 4008 0.33 0.419 0.031 47.5
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 29.8
RMS Deviations
Key Refinement Restraint Deviation
x_dihedral_angle_d 25.3
x_improper_angle_d 1.8
x_bond_d 0.016
x_angle_deg 2.0
Coordinate Error
Parameter Value
Luzzati Resolution Cutoff (Low) 30.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7482
Nucleic Acid Atoms 0
Heterogen Atoms 39
Solvent Atoms 0

Software

Software
Software Name Purpose
X-PLOR model building
X-PLOR refinement version: 3.851
MOSFLM data reduction
CCP4 data scaling version: (SCALA)
X-PLOR phasing