1L4A
X-RAY STRUCTURE OF THE NEURONAL COMPLEXIN/SNARE COMPLEX FROM THE SQUID LOLIGO PEALEI
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | ESRF BEAMLINE ID29 |
Synchrotron site | ESRF |
Beamline | ID29 |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2001-11-19 |
Detector | ADSC QUANTUM 210 |
Wavelength(s) | 0.9150 |
Spacegroup name | P 21 21 21 |
Unit cell lengths | 26.072, 75.430, 243.109 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 15.000 - 2.950 |
R-factor | 0.3004 |
Rwork | 0.297 |
R-free | 0.34450 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1sfc |
RMSD bond length | 0.008 |
RMSD bond angle | 20.200 * |
Data reduction software | MOSFLM |
Data scaling software | CCP4 ((SCALA)) |
Phasing software | BEAST |
Refinement software | CNS (1.0) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 75.000 * | 3.130 |
High resolution limit [Å] | 2.950 | 2.950 |
Rmerge | 0.086 | 0.219 |
Total number of observations | 41657 * | |
Number of reflections | 10128 | |
<I/σ(I)> | 4.7 | 3.1 |
Completeness [%] | 93.6 | 93 |
Redundancy | 4.1 | 4 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.2 | 20 * | 5% MPD, 7.5% PEG550-MME, 20MM beta mercaptoethanol, 20MM Tris PH 7.2, 50MM sodium chloride, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystallization Reagents in Literatures
ID | crystal ID | solution | reagent name | concentration (unit) | details |
1 | 1 | drop | protein | 12 (mg/ml) | |
2 | 1 | drop | MPD | 4-5.5 (%(v/v)) | |
3 | 1 | drop | PEG550 MME | 7-8 (%(w/v)) | |
4 | 1 | drop | beta-mercaptoethanol | 20 (mM) | |
5 | 1 | reservoir | MPD | 10 (%(w/v)) | |
6 | 1 | reservoir | PEG550 MME | 16 (%(w/v)) |