X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7.5
Temperature 22.0
Details PEG 400, CALCIUM CHLORIDE, HEPES, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 22K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 91.12 α = 90
b = 91.12 β = 90
c = 62.72 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 -- 1998-03-15
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
1.95 20 95.7 0.063 -- -- 5.1 57577 11190 0.0 0.0 48.0
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)
1.95 2.02 95.7 0.497 -- -- 3.9 1083

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 20.0 0.0 0.0 10368 9352 1016 -- -- -- 0.2193 0.2516 Random
RMS Deviations
Key Refinement Restraint Deviation
chiral volumes 0.099
B-factors (main chain angle) 5.38
B-factors (side chain bond) 4.52
torsion angles (staggered) 19.6
planar groups (aromatics) 0.0053
torsion angles (planar) 3.4
torsion angles (orthonormal) 36.7
B-factors (main chain bond) 4.0
B-factors (side chain angle) 5.95
p_bond_d 0.007
planar groups (peptides) 0.0154
p_angle_d 0.025
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1081
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 41

Software

Software
Software Name Purpose
SHARP phasing
REFMAC refinement
DENZO data reduction
SCALEPACK data scaling