X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details CRYSTALLIZED IN TRIS-HCL BUFFER (PH 7.5). AMMONIUM SULFATE WAS USED AS PRECIPITANT.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 87.25 α = 90
b = 87.25 β = 90
c = 169.58 γ = 120
Symmetry
Space Group P 62 2 2

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
FILM -- -- 1991-11-28
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON PHOTON FACTORY BEAMLINE BL-6A -- PHOTON FACTORY BL-6A

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
1.8 45.1 81.5 0.058 -- -- -- -- 23410 -- 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
-- 2.0 8.0 -- 2.0 -- 19832 -- 78.9 -- 0.188 0.188 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.61
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.43
x_angle_deg 2.75
x_bond_d 0.012
x_dihedral_angle_d 26.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2479
Nucleic Acid Atoms 0
Heterogen Atoms 54
Solvent Atoms 135

Software

Computing
Computing Package Purpose
WEIS Data Reduction (intensity integration)
X-PLOR 3.0 Structure Solution
X-PLOR 3.0 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.0 model building
X-PLOR version: 3.0 refinement