6VWV
Transitional unit cell 2 of adenine riboswitch aptamer crystal phase transition upon ligand binding
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | FREE ELECTRON LASER |
Source details | SLAC LCLS BEAMLINE CXI |
Synchrotron site | SLAC LCLS |
Beamline | CXI |
Temperature [K] | 295 |
Detector technology | PIXEL |
Collection date | 2016-08-18 |
Detector | CS-PAD CXI-1 |
Wavelength(s) | 1.34 |
Spacegroup name | P 1 |
Unit cell lengths | 35.090, 25.490, 123.960 |
Unit cell angles | 90.01, 84.05, 68.89 |
Refinement procedure
Resolution | 27.000 - 3.000 |
R-factor | 0.2475 |
Rwork | 0.246 |
R-free | 0.27930 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 4tzx |
Data reduction software | CrystFEL |
Data scaling software | SCALA |
Phasing software | PHASER |
Refinement software | PHENIX (1.18rc5_3822) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 27.530 | 3.110 |
High resolution limit [Å] | 3.000 | 3.000 |
Number of reflections | 7980 | 812 |
<I/σ(I)> | 3.46 | 0.57 |
Completeness [%] | 100.0 | 100 |
Redundancy | 118.1 | 74.6 |
CC(1/2) | 0.971 | 0.446 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | BATCH MODE | 6.5 | 295 | 40 mM sodium cacodylate, pH 6.5, 80 mM potassium chloride, 100 mM magnesium chloride, 12 mM spermine tetrahydrochloride, 65% v/v (+/-)-2-methyl-2,4-pentanediol |