1JAU
NMR Solution Structure of the Trp-Rich Peptide of HIV gp41 Bound to DPC Micelles
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 1.6 mM synthetic gp41 peptide, 200 mM perdeuterated dodecylphosphocholine | 90% H2O/10% D2O | 200 mM DPC-d38 | 3.51 | ambient | 310 | |
2 | 2D TOCSY | 1.6 mM synthetic gp41 peptide, 200 mM perdeuterated dodecylphosphocholine | 90% H2O/10% D2O | 200 mM DPC-d38 | 3.51 | ambient | 310 | |
3 | DQF-COSY | 1.6 mM synthetic gp41 peptide, 200 mM perdeuterated dodecylphosphocholine | 90% H2O/10% D2O | 200 mM DPC-d38 | 3.51 | ambient | 310 | |
4 | 2D NOESY | 1.6 mM synthetic gp41 peptide, 200 mM perdeuterated dodecylphosphocholine | 100% D2O | 200 mM DPC-d38 | 3.51 | ambient | 310 | |
5 | 2D TOCSY | 1.6 mM synthetic gp41 peptide, 200 mM perdeuterated dodecylphosphocholine | 100% D2O | 200 mM DPC-d38 | 3.51 | ambient | 310 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | AVANCE | 500 |
2 | Varian | INOVA | 800 |
NMR Refinement | ||
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Method | Details | Software |
distance geometry, simulated annealing, molecular dynamics, matrix relaxation | Structures were initially generated using CNS. Ambiguous and unassigned noe constraints were then used in conjuction with matrix relaxation analysis using the program ARIA. | XwinNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 200 |
Conformers Submitted Total Number | 40 |
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 | XwinNMR | 2.6 | Bruker |
2 | processing | NMRPipe | 1.8 | F.Delaglio, S.Grzesiek, G.Vuister, G.Zhu, J.Pfeifer, A.Bax |
3 | data analysis | NMRView | 4.1.3 | B.Johnson, R.A.Blevins |
4 | structure solution | CNS | 1.0 | A.T.Brunger, P.D.Adams, G.M.Clore, W.L.Delano, P.Gros, R.W.Grosse-Kunstleve, J.-S.Jiang, J.Kuszewski, M.Nilges, N.S.Pannu, R.J.Read, L.M.Rice, T.Simonson, G.L.Warren |
5 | iterative matrix relaxation | ARIA | 1.0 | M.Nilges, J.Linge, S.O'Donoghue |
6 | refinement | CNS | 1.0 | A.T.Brunger, P.D.Adams, G.M.Clore, W.L.Delano, P.Gros, R.W.Grosse-Kunstleve, J.-S.Jiang, J.Kuszewski, M.Nilges, N.S.Pannu, R.J.Read, L.M.Rice, T.Simonson, G.L.Warren |