1AI2
ISOCITRATE DEHYDROGENASE COMPLEXED WITH ISOCITRATE, NADP+, AND CALCIUM (FLASH-COOLED)
Replaces: 1IKBExperimental procedure
| Source type | SYNCHROTRON | 
| Source details | NSLS BEAMLINE X12C | 
| Synchrotron site | NSLS | 
| Beamline | X12C | 
| Temperature [K] | 100 | 
| Detector technology | IMAGE PLATE AREA DETECTOR | 
| Collection date | 1996-07 | 
| Detector | MARRESEARCH | 
| Spacegroup name | P 43 21 2 | 
| Unit cell lengths | 102.300, 102.300, 150.500 | 
| Unit cell angles | 90.00, 90.00, 90.00 | 
Refinement procedure
| Resolution | 50.000 - 1.900 | 
| R-factor | 0.191 | 
| Rwork | 0.191 | 
| R-free | 0.21500 | 
| Structure solution method | MOLECULAR REPLACEMENT | 
| Starting model (for MR) | 1iso | 
| RMSD bond length | 0.014 | 
| RMSD bond angle | 23.900 * | 
| Data reduction software | DENZO | 
| Data scaling software | SCALEPACK | 
| Phasing software | AMoRE | 
| Refinement software | X-PLOR (3.8) | 
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 50.000 | 2.000 | 
| High resolution limit [Å] | 1.900 | 1.900 | 
| Rmerge | 0.059 | 0.140 | 
| Total number of observations | 183903 * | |
| Number of reflections | 63007 | |
| <I/σ(I)> | 10 | 2.8 | 
| Completeness [%] | 98.6 | 92 | 
| Redundancy | 2.9 | 2.9 | 
Crystallization Conditions
| crystal ID | method | pH | temperature | details | 
| 1 | unknown * | 5.4 * | Hurley, J.H., (1989) Proc. Natl. Acad. Sci. U.S.A., 86, 8635. * | 
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details | 
| 1 | 1 | 1 | protein | 28 (mg/ml) | |
| 2 | 1 | 1 | ammonium sulfate | 34 (%sat) | |
| 3 | 1 | 1 | 100 (mM) | ||
| 4 | 1 | 1 | 35 (mM) | ||
| 5 | 1 | 1 | citric acid | 9 (mM) | |
| 6 | 1 | 1 | dithiothreitol | 0.2 (mM) | 






