2G9P
NMR structure of a novel antimicrobial peptide, latarcin 2a, from spider (Lachesana tarabaevi) venom
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D TOCSY | 1.7 mM Ltc2a; 102 mM SDS-d25, 95% H2O, 5% D2O | 95% H2O/5% D2O | no salt | 6.8 | ambient | 318 | |
2 | 2D NOESY | 1.7 mM Ltc2a; 102 mM SDS-d25, 95% H2O, 5% D2O | 95% H2O/5% D2O | no salt | 6.8 | ambient | 318 | |
3 | 2D TOCSY | 1.7 mM Ltc2a; 102 mM SDS-d25, 100 % D2O | 100% D2O | no salt | 6.8 | ambient | 318 | |
4 | 2D NOESY | 1.7 mM Ltc2a; 102 mM SDS-d25, 100 % D2O | 100% D2O | no salt | 6.8 | ambient | 318 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | UNITY | 600 |
2 | Bruker | DRX | 500 |
NMR Refinement | ||
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Method | Details | Software |
torsion angle dynamics followed by refinement in implicit membrane model (water/octanol/water slab) | In total, 222 distance and 123 torsion angles constraints were used for structure calculation | VNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | target function |
Conformers Calculated Total Number | 200 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (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 | collection | VNMR | 6.1.C. | Varian, Co |
2 | collection | XwinNMR | 3.1.a | Bruker, GMBh |
3 | structure solution | CYANA | 1.0.6. | Herrmann T., Guentert P., Wuethrich K. |
4 | refinement | FANMEM | von Freyberg, B., Braun, W., Nolde, D.E., Volynsky, P.E., Arseniev, A.S., Efremov, R.G. | |
5 | data analysis | XEASY | 40300000 | Bartels, C., Xia, T., Billeter, M., Guentert, P., Wuetrich, K. |
6 | data analysis | MOLMOL | 2K.1 | Koradi, R., Billetr, M., Wuetrich, K. |