4YGX
Crystal Structure of D. melanogaster Ssu72+Symplekin bound to cis peptidomimetic CTD phospho-Ser5 peptide
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | APS BEAMLINE 23-ID-B |
| Synchrotron site | APS |
| Beamline | 23-ID-B |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2013-06-15 |
| Detector | MARMOSAIC 300 mm CCD |
| Wavelength(s) | 1.03320 |
| Spacegroup name | P 4 |
| Unit cell lengths | 127.880, 127.880, 105.861 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 50.000 - 2.950 |
| R-factor | 0.2081 |
| Rwork | 0.206 |
| R-free | 0.25420 |
| Structure solution method | MOLECULAR REPLACEMENT |
| RMSD bond length | 0.013 |
| RMSD bond angle | 1.741 |
| Data reduction software | HKL-2000 |
| Data scaling software | HKL-2000 |
| Phasing software | PHASER (2.5.6) |
| Refinement software | REFMAC (5.8.0073) |
Data quality characteristics
| Overall | Inner shell | Outer shell | |
| Low resolution limit [Å] | 50.000 | 50.000 | 3.000 |
| High resolution limit [Å] | 2.950 | 8.000 | 2.950 |
| Rmerge | 0.104 | 0.034 | 0.899 |
| Total number of observations | 245848 | ||
| Number of reflections | 35810 | ||
| <I/σ(I)> | 8.2 | ||
| Completeness [%] | 99.2 | 99.7 | 96.2 |
| Redundancy | 6.9 | 7.4 | 4.5 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 293 | Optimized Ssu72-symplekin crystals were obtained with reservoir solution consisting of 12% PEG3350 (w/v) and 100 mM HEPE. To obtain the tertiary complex structure of Drosophila Ssu72-symplekin-Cis-locked peptide, crystals of Ssu72-symplekin were soaked in a mother solution containing 2 mM 11mer peptide overnight at room temperature |
