X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.4
Details PROTEIN WAS CRYSTALLIZED FROM 0.9 - 1.2 M SODIUM CITRATE (PH 6.4 - 6.8) AND 2MM DTT AT ROOM TEMPERATURE USING HANGING DROP METHOD

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 78 α = 90
b = 97.4 β = 90
c = 137.4 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS -- 1990-01
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

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
2.6 79.5 87.3 -- 0.071 -- -- -- 14713 -- -- --
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)
2.58 2.67 65.2 -- -- -- -- --

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
SINGLE ISOMORPHOUS REPLACEMENT 2.8 8.0 -- 2.0 -- 10970 592 91.6 -- 0.201 0.201 0.248 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 30.8
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.12
x_bond_d 0.007
x_angle_deg 1.2
x_dihedral_angle_d 22.4
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Luzzati Resolution Cutoff (Low) 8.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3306
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

Software

Computing
Computing Package Purpose
XENGEN Data Reduction (intensity integration)
XENGEN Data Reduction (data scaling)
X-PLOR 3.1 Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
X-PLOR version: 3.1 model building