X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.2
Details THE COMPLEX WAS CRYSTALLIZED FROM 10% PEG4000, 20MM SODIUM CITRATE (PH 4.2), 0.1 AMMONIUM SULPHATE AND 25 MM DTT.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 66.55 α = 90
b = 105.61 β = 107.09
c = 93.52 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 289
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1996-06
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 0.87, 1.5418 SRS PX9.6

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 40 86.9 0.094 -- -- 2.2 -- 72355 -- 0.0 40.4
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 2.07 65.4 0.436 -- 1.6 -- --

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 2.0 20.0 -- 0.0 -- 72308 -- 86.9 -- 0.193 0.193 0.286 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 42.0
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 8.3
x_scbond_it 5.3
x_mcangle_it 4.2
x_mcbond_it 2.6
x_bond_d 0.009
x_angle_deg 1.4
Coordinate Error
Parameter Value
Luzzati Sigma A (R-Free Set) 0.36
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8806
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 133

Software

Computing
Computing Package Purpose
DENZO, XDS Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
X-PLOR 3.8 Structure Solution
X-PLOR 3.8 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.8 refinement
X-PLOR version: 3.8 model building
SCALA data reduction
XDS data collection
DENZO data collection