1PP5
Structure of Antibacterial Peptide Microcin J25: a 21-Residue Lariat Protoknot
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 3D_15N-separated_NOESY | 2mM Microcin J25 U-13C,15N; 99.5% CD3OH, 0.5% H2O | 99.5% CD3OH, 0.5% H2O | NA | ambient | 298 | ||
2 | 3D_13C-separated_NOESY | 2mM Microcin J25 U-13C,15N; 99.5% CD3OH, 0.5% H2O | 99.5% CD3OH, 0.5% H2O | NA | ambient | 298 | ||
3 | HNHA | 2mM Microcin J25 U-13C,15N; 99.5% CD3OH, 0.5% H2O | 99.5% CD3OH, 0.5% H2O | NA | ambient | 298 | ||
4 | HNCACB | 2mM Microcin J25 U-13C,15N; 99.5% CD3OH, 0.5% H2O | 99.5% CD3OH, 0.5% H2O | NA | ambient | 298 | ||
5 | CBCAcoNH | 2mM Microcin J25 U-13C,15N; 99.5% CD3OH, 0.5% H2O | 99.5% CD3OH, 0.5% H2O | NA | ambient | 298 | ||
6 | 2mM Microcin J25 U-13C,15N; 99.5% CD3OH, 0.5% H2O | 99.5% CD3OH, 0.5% H2O | NA | ambient | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 500 |
2 | Varian | INOVA | 600 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing | The ensemble of structures is based on a total of 198 conformationally restraining constraints, 179 are NOE-derived distance constraints, 13 are dihedral angle constraints, 6 are distance constraints from hydrogen bonds. | AutoProc |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 60 |
Conformers Submitted Total Number | 10 |
Representative Model | 1 (lowest energy) |
Additional NMR Experimental Information | |
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Details | The structure was determined using triple-resonance NMR spectroscopy. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | processing | AutoProc | 0.8 | Bayro, M.J.; Monleon, D.; Baran, M.C.; Sahota, G.; Paranji, R.; Moseley, H.N.B.; Aramini, J.M.; Swapna, G.V.T.; Montelione, G.T. |
2 | processing | NMRPipe | 1.4 | Delaglio, F.; Grzesiek, S.; Vuister, G.; Zhu, G.; Pfeifer, J.; Bax, A. |
3 | structure solution | AutoStructure | 1.1.2 | Huang, Y.J., Tejero, R., Montelione, G.T. |
4 | structure solution | DYANA | 1.5 | Guntert, P.; Mumenthaler, C.; Wuthrich, K. |
5 | refinement | PDBStat | 3.25 | Tejero, R.; Montelione, G.T. |