X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 90.61 α = 90
b = 90.61 β = 90
c = 80.36 γ = 120
Symmetry
Space Group P 31

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-02-22
Diffraction Radiation
Monochromator Protocol
-- --
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
2.25 16 96.0 0.047 -- -- 2.9 -- 33281 -- 4.0 --

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
-- 2.25 16.0 -- 2.0 -- 33264 -- 95.9 -- 0.219 0.219 0.294 --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 30.0
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.61
x_bond_d 0.017
x_angle_deg 2.9
x_dihedral_angle_d 25.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.35
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3178
Nucleic Acid Atoms 1524
Heterogen Atoms 0
Solvent Atoms 206

Software

Computing
Computing Package Purpose
MOSFLM, CCP4 Data Reduction (intensity integration)
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement