1Q3J
Solution structure of ALO3: a new knottin-type antifungal peptide from the insect Acrocinus longimanus
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D TOCSY | peptide at 1.2mM, acetate buffer at 40mM, 90% H2O, 10% D2O | 90% H2O/10% D2O | 5.2 | ambient | 293 | ||
2 | DQF-COSY | peptide at 1.2mM, acetate buffer at 40mM, 90% H2O, 10% D2O | 90% H2O/10% D2O | 5.2 | ambient | 293 | ||
3 | 2D TOCSY | peptide at 1.2mM, acetate buffer at 40mM, 90% H2O, 10% D2O | 90% H2O/10% D2O | 5.2 | ambient | 303 | ||
4 | 2D NOESY | peptide at 1.2mM, acetate buffer at 40mM, 90% H2O, 10% D2O | 90% H2O/10% D2O | 5.2 | ambient | 293 | ||
5 | 2D TOCSY | peptide at 1.2mM, acetate buffer at 40mM | 100% D2O | 5.2 | ambient | 293 | ||
6 | kinetics exchange | peptide at 1.2mM, acetate buffer at 40mM | 100% D2O | 5.2 | ambient | 293 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 600 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing with torsion angle space | Determination of disulfide pattern was done using ambiguous disulfide restraints. | NMRPipe |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy and the least restraint violations |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 10 |
Representative Model | 4 (lowest energy) |
Additional NMR Experimental Information | |
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Details | This structure was determined using standard 2D homonuclear techniques. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | processing | NMRPipe | 2.2 | Delaglio, F. |
2 | data analysis | NMRview | 5.0 | Johnson, B.A. |
3 | structure solution | ARIA | 1.1 | Nilges, M. |
4 | structure solution | CNS | 1.1 | Brunger, A.T. |
5 | data analysis | Molmol | 2k1 | Koradi, R. |
6 | refinement | CNS | 1.1 | Brunger, A.T. |