structure of a rhodamine-labeled N-domain Troponin C mutant (Ca2+ saturated) in complex with skeletal Troponin I 115-131
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 3D_15N-separated_NOESY | 320 mM KCl, 10 mM imidazole, 1.3% NaN3, pH 6.5, ~1mM sNTnC.2Ca2+.TnI115-131.BR56-63 | 90% H2O/10% D2O | 320 mM KCl | 6.5 | ambiant | 303 | |
| 2 | 3D_15N/13C-NOESY | 320 mM KCl, 10 mM imidazole, 1.3% NaN3, pH 6.5, ~1mM sNTnC.2Ca2+.TnI115-131.BR56-63 | 90% H2O/10% D2O | 320 mM KCl | 6.5 | ambiant | 303 | |
| 3 | HNHA | 320 mM KCl, 10 mM imidazole, 1.3% NaN3, pH 6.5, ~1mM sNTnC.2Ca2+.TnI115-131.BR56-63 | 90% H2O/10% D2O | 320 mM KCl | 6.5 | ambiant | 303 | |
| 4 | 2D_13C/15N-edited-NOESY | 320 mM KCl, 10 mM imidazole, 1.3% NaN3, pH 6.5, ~1mM sNTnC.2Ca2+.TnI115-131.BR56-63 | 90% H2O/10% D2O | 320 mM KCl | 6.5 | ambiant | 303 | |
| 5 | 2D_13C/15N-filtered/edited-NOESY | 320 mM KCl, 10 mM imidazole, 1.3% NaN3, pH 6.5, ~1mM sNTnC.2Ca2+.TnI115-131.BR56-63 | 90% H2O/10% D2O | 320 mM KCl | 6.5 | ambiant | 303 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 800 |
| 2 | Varian | UNITY | 600 |
| 3 | Varian | INOVA | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing using torsion angle dynamics AND cartesian dynamics with the program CNS 1.1 | calcium restraints were introduced only during the 2nd cooling stage using cartesian dynamics. See table 3 of the reference paper for a detailed description of the distance and dihedral restraints. | CNS |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 100 |
| Conformers Submitted Total Number | 21 |
| Representative Model | 1 (minimized average structure) |
| Additional NMR Experimental Information | |
|---|---|
| Details | The structure was determined using triple-resonance spectroscopy. The chemical shifts for TnI115-131 were obtained from a 2D_15N/13C_filtered-DIPSI experiment. Intramolecular NOEs for TnI115-131 were obtained from a 2D_15N/13C_filtered-NOESY experiment. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | structure solution | CNS | 1.1 | A.T.Brunger |
| 2 | processing | NMRPipe | Feb 2002 | Frank Delaglio |
| 3 | data analysis | NMRView | 5.0.4 | Bruce Johnson |
| 4 | data analysis | Procheck | 3.5.4 | Laskowski |
| 5 | refinement | CNS | 1.1 | A.T.Brunger |
