1K82
Crystal structure of E.coli formamidopyrimidine-DNA glycosylase (Fpg) covalently trapped with DNA
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | NSLS BEAMLINE X26C |
Synchrotron site | NSLS |
Beamline | X26C |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2001-04-29 |
Detector | ADSC QUANTUM 4 |
Wavelength(s) | 1.1000 |
Spacegroup name | P 1 21 1 |
Unit cell lengths | 80.704, 96.033, 96.228 |
Unit cell angles | 90.00, 96.80, 90.00 |
Refinement procedure
Resolution | 34.000 - 2.100 |
Rwork | 0.214 |
R-free | 0.26500 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1EE8 AND PDB ENTRY 1K3W |
RMSD bond length | 0.010 * |
RMSD bond angle | 1.990 * |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | GLRF |
Refinement software | CNS (1.0) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 34.000 | 2.180 |
High resolution limit [Å] | 2.100 | 2.100 |
Rmerge | 0.069 * | 0.265 * |
Total number of observations | 310926 * | |
Number of reflections | 84396 | |
<I/σ(I)> | 11.8 | |
Completeness [%] | 99.6 | 99.7 |
Redundancy | 4 | 4 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | Vapor diffusion * | 6.5 | 15 * | PEG 8000, Ammonium Sulfate, cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystallization Reagents
ID | crystal ID | solution ID | reagent name | concentration | details |
1 | 1 | 1 | PEG 8000 | ||
2 | 1 | 1 | Ammonium Sulfate | ||
3 | 1 | 1 | cacodylate |
Crystallization Reagents in Literatures
ID | crystal ID | solution | reagent name | concentration (unit) | details |
1 | 1 | drop | Tris-HCl | 50 (mM) | |
2 | 1 | drop | 5 (mM) | ||
3 | 1 | drop | 460 (mM) | ||
5 | 1 | drop | protein | 1.8-2.0 (mg/ml) | |
6 | 1 | reservoir | PEG8000 | 30 (%(w/v)) | |
7 | 1 | reservoir | ammonium sulfate | 0.2 (M) | |
8 | 1 | reservoir | sodium cacodylate | 0.1 (M) | pH6.5 |