1Q2S
Chemical trapping and crystal structure of a catalytic tRNA guanine transglycosylase covalent intermediate
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | APS BEAMLINE 14-BM-C |
Synchrotron site | APS |
Beamline | 14-BM-C |
Spacegroup name | I 4 |
Unit cell lengths | 261.961, 261.961, 55.549 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 30.000 - 3.200 |
Rwork | 0.180 |
R-free | 0.23500 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1pud |
RMSD bond length | 0.007 * |
RMSD bond angle | 1.310 * |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | AMoRE |
Refinement software | CNS (1.1) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 30.000 | |
High resolution limit [Å] | 3.200 | 3.200 * |
Rmerge | 0.092 | 0.362 * |
Number of reflections | 31940 * | 3148 * |
Completeness [%] | 99.7 * | 99.3 * |
Redundancy | 6.2 * | 4.8 * |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | Vapor diffusion * | 7.5 | 4 * | PEG 6000, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K |
Crystallization Reagents
ID | crystal ID | solution ID | reagent name | concentration | details |
1 | 1 | 1 | PEG 6000 | ||
2 | 1 | 1 | H2O | ||
3 | 1 | 2 | PEG 6000 | ||
4 | 1 | 2 | H2O |
Crystallization Reagents in Literatures
ID | crystal ID | solution | reagent name | concentration (unit) | details |
1 | 1 | reservoir | HEPES | 100 (mM) | pH7.5 |
2 | 1 | reservoir | PEG6000 | 28 (%(w/v)) | |
3 | 1 | reservoir | 100 (mM) | ||
4 | 1 | reservoir | spermine | 10 (mM) |