2JXD
NMR structure of human Serine protease inhibitor Kazal type II (SPINK2)
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 1.5 mM SPINK2, 90% H2O, 10% D2O | 90% H2O/10% D2O | 3.7 | 1 atm | 298 | ||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing, Water refinement | Structure calculations were carried out with the standard simulated annealing protocol by using the CNS 1.1 program. Several rounds of calculations were used to eliminate the ambiguity in the assignment.Final structures were refined by the explicit water model using the OPLS force field in RECOORD and evaluated with PROCHECK-nmr. | CNS |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 200 |
| Conformers Submitted Total Number | 15 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | CNS | 1.1 | Brunger A.T. |
