X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Lipidic Cubic Phase (lcp)
pH 8
Temperature 293.0
Details 100mM Tris/HCl pH8.0, 20-80mM MgCl2 and 30% (v/v) PEG400 , Lipidic Cubic Phase (LCP), temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.5 α = 90
b = 122.2 β = 90
c = 168.5 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 294
Diffraction Detector
Detector Diffraction Type Details Collection Date
PIXEL Cornell-SLAC Pixel Array Detector (CSPAD) K-B Mirrors 2013-03
Diffraction Radiation
Monochromator Protocol
K-B Mirrors SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
FREE ELECTRON LASER SLAC LCLS BEAMLINE CXI 1.3 SLAC LCLS CXI

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
2.8 35 100.0 0.095 -- -- 1150.0 -- 16052 -- -- --
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)
2.8 2.9 100.0 -- -- -- -- --

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
MOLECULAR REPLACEMENT 2.8 34.681 -- 1.33 -- 16025 814 99.89 -- 0.2287 0.2266 0.2701 --
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.8001 2.9754 -- 137 2489 0.3409 0.3841 -- 100.0
X Ray Diffraction 2.9754 3.205 -- 136 2470 0.3072 0.3388 -- 100.0
X Ray Diffraction 3.205 3.5272 -- 129 2512 0.2629 0.3548 -- 100.0
X Ray Diffraction 3.5272 4.037 -- 143 2534 0.2153 0.2685 -- 100.0
X Ray Diffraction 4.037 5.0836 -- 133 2539 0.1784 0.2325 -- 100.0
X Ray Diffraction 5.0836 34.6839 -- 136 2667 0.2491 0.2677 -- 100.0
RMS Deviations
Key Refinement Restraint Deviation
f_dihedral_angle_d 15.414
f_bond_d 0.002
f_chiral_restr 0.032
f_angle_d 0.601
f_plane_restr 0.002
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2837
Nucleic Acid Atoms 0
Heterogen Atoms 277
Solvent Atoms 7

Software

Software
Software Name Purpose
PHASER phasing
PHENIX refinement version: (phenix.refine: 1.8_1069)
CrystFEL data reduction
CrystFEL data scaling