1SC7
Human DNA Topoisomerase I (70 Kda) In Complex With The Indenoisoquinoline MJ-II-38 and Covalent Complex With A 22 Base Pair DNA Duplex
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | NSLS BEAMLINE X25 |
| Synchrotron site | NSLS |
| Beamline | X25 |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Wavelength(s) | 1.1 |
| Spacegroup name | C 1 2 1 |
| Unit cell lengths | 260.940, 74.659, 57.494 |
| Unit cell angles | 90.00, 96.94, 90.00 |
Refinement procedure
| Resolution | 19.850 - 3.000 |
| Rwork | 0.233 |
| R-free | 0.28500 |
| Structure solution method | MOLECULAR REPLACEMENT |
| RMSD bond length | 0.011 |
| RMSD bond angle | 1.600 |
| Data reduction software | HKL-2000 |
| Data scaling software | SCALEPACK |
| Phasing software | AMoRE |
| Refinement software | CNX (2002) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 20.000 | 3.080 |
| High resolution limit [Å] | 3.000 | 3.000 |
| Number of reflections | 18923 | |
| <I/σ(I)> | 15.1 | 2.3 |
| Completeness [%] | 90.1 | 32.7 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 6.4 | 289 | PEG 8000, AMMONIUM SULFATE, MES, pH 6.4, VAPOR DIFFUSION, SITTING DROP, temperature 289K |
Crystallization Reagents
| ID | crystal ID | solution ID | reagent name | concentration | details |
| 1 | 1 | 1 | PEG 8000 | ||
| 2 | 1 | 1 | AMMONIUM SULFATE | ||
| 3 | 1 | 1 | MES | ||
| 4 | 1 | 2 | AMMONIUM SULFATE | ||
| 5 | 1 | 2 | MES |
