6UU7
E. coli sigma-S transcription initiation complex with a 6-nt RNA and an NTP ("Old" crystal soaked with UTP, CTP, ddGTP, and dinucleotide ApG for 30 minutes)
This is a non-PDB format compatible entry.
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | APS BEAMLINE 24-ID-E |
Synchrotron site | APS |
Beamline | 24-ID-E |
Temperature [K] | 100 |
Detector technology | PIXEL |
Collection date | 2017-07-06 |
Detector | DECTRIS PILATUS 6M-F |
Wavelength(s) | 0.9792 |
Spacegroup name | P 21 21 21 |
Unit cell lengths | 132.936, 153.772, 232.616 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 49.148 - 4.400 |
Rwork | 0.344 |
R-free | 0.38970 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 5ipl |
RMSD bond length | 0.006 |
RMSD bond angle | 1.399 |
Data reduction software | XDS |
Data scaling software | XDS |
Phasing software | PHASER |
Refinement software | REFMAC (5.8.0257) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 49.200 | 4.660 |
High resolution limit [Å] | 4.400 | 4.400 |
Number of reflections | 30874 | 4779 |
<I/σ(I)> | 7.04 | 0.43 |
Completeness [%] | 99.4 | 97.3 |
Redundancy | 6.7 | 6.7 |
CC(1/2) | 0.998 | 0.208 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, SITTING DROP | 8 | 295 | PEG3350, sodium chloride, HEPES |