X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.6
Temperature 22.0
Details Ammonium Phosphate, Sodium-Potassium Tartrate, Citrate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 22K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 92.13 α = 90
b = 92.13 β = 90
c = 63.29 γ = 120
Symmetry
Space Group P 63 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 95
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 1998-07-23
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X26C -- NSLS X26C

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
2.48 20 0.971 0.071 -- -- 3.4 19808 5826 0.0 0.0 50.7
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)
2.48 2.59 98.6 0.516 -- -- 2.6 --

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
-- 2.5 20.0 0.0 0.0 5665 5098 567 -- -- -- 0.2171 0.2759 Random
RMS Deviations
Key Refinement Restraint Deviation
B-factors (side chain angle) 5.4
B-factors (side chain bond) 3.32
B-factors (main chain angle) 4.84
B-factors (main chain bond) 3.0
torsion angles (orthonormal) 26.1
torsion angles (staggered) 21.4
torsion angles (planar) 3.3
chiral volumes 0.109
planar groups (aromatics) 0.0067
planar groups (peptides) 0.016
p_angle_d 0.03
p_bond_d 0.008
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1063
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 4

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
FOURIER METHODS Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
FOURIER version: TECHNIQUES model building