Polycrystalline T6 Bovine Insulin: Anisotropic Lattice Evolution and Novel Structure Refinement Strategy
POWDER DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | Batch | 6 | 295 | polycrystalline samples of T6 hexameric insulin (Zn2[(AB)2]3, the pH was adjusted by mixing different ratios of 0.2M solutions of sodium monobasic monohydrate phosphate and potassium phosphate., Batch, temperature 295K |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 82.607 | α = 90 |
| b = 82.607 | β = 90 |
| c = 33.632 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | H 3 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 295 | CCD | Frelon4M 2k x 2k CCD camera | DOUBLE SI(111) monochromator | 2006-11-07 | M | SINGLE WAVELENGTH | |||||
| 2 | 1 | x-ray | NINE AVALANCHE PHOTODIODE (APD) DETECTORS (SI BASED) | APD | DOUBLE SI(111)monochromator | 2006-11-07 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE ID13 | 1.29967, 0.53395 | ESRF | ID13 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | |||||||||
| 1 | 2.7 | 18.2 | 70 | 2140 | 2140 | 3 | 3 | ||||||||||||
Software
| Software | |
|---|---|
| Software Name | Purpose |
| ID31sum | data collection |
| MOLREP | phasing |
| GSAS | refinement |
| FIT2D | data reduction |
| ID31sum | data scaling |
