1HP2
SOLUTION STRUCTURE OF A TOXIN FROM THE SCORPION TITYUS SERRULATUS (TSTX-K ALPHA) DETERMINED BY NMR.
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 4.53 mM TsTx-Ka 2.2 mM d11-Tris 0.1 mM EDTA 0.35 mM NaN3 | 90% H2O/10% D2O | 1.44 | 3.50 | 1 atm | 310 | |
2 | DQF-COSY | 4.53 mM TsTx-Ka 2.2 mM d11-Tris 0.1 mM EDTA 0.35 mM NaN3 | 90% H2O/10% D2O | 1.44 | 3.50 | 1 atm | 310 | |
3 | TOCSY | 4.53 mM TsTx-Ka 2.2 mM d11-Tris 0.1 mM EDTA 0.35 mM NaN3 | 90% H2O/10% D2O | 1.44 | 3.50 | 1 atm | 310 | |
4 | ROESY | 4.53 mM TsTx-Ka 2.2 mM d11-Tris 0.1 mM EDTA 0.35 mM NaN3 | 90% H2O/10% D2O | 1.44 | 3.50 | 1 atm | 310 | |
5 | E-COSY | 4.53 mM TsTx-Ka 2.2 mM d11-Tris 0.1 mM EDTA 0.35 mM NaN3 | 100% D2O | 1.44 | 3.50 | 1 atm | 310 | |
6 | TOCSY | 4.53 mM TsTx-Ka 2.2 mM d11-Tris 0.1 mM EDTA 0.35 mM NaN3 | 90% H2O/10% D2O | 1.44 | 3.50 | 1 atm | 305 | |
7 | TOCSY | 4.53 mM TsTx-Ka 2.2 mM d11-Tris 0.1 mM EDTA 0.35 mM NaN3 | 90% H2O/10% D2O | 1.44 | 3.50 | 1 atm | 300 | |
8 | TOCSY | 4.53 mM TsTx-Ka 2.2 mM d11-Tris 0.1 mM EDTA 0.35 mM NaN3 | 90% H2O/10% D2O | 1.44 | 3.50 | 1 atm | 295 | |
9 | TOCSY | 4.53 mM TsTx-Ka 2.2 mM d11-Tris 0.1 mM EDTA 0.35 mM NaN3 | 90% H2O/10% D2O | 1.44 | 3.50 | 1 atm | 290 | |
10 | 2D NOESY | 4.53 mM TsTx-Ka 2.2 mM d11-Tris 0.1 mM EDTA 0.35 mM NaN3 | 90% H2O/10% D2O | 1.44 | 3.50 | 1 atm | 290 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DMX | 600 |
NMR Refinement | ||
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Method | Details | Software |
distance geometry simulated annealing | These structures are based on a total of 569 NOE distance contraints, 13 dihedral angle restraints, and 16 phi angle restraints. | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with acceptable covalent geometry,structures with the least restraint violations,structures with the lowest energy |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 30 |
Representative Model | 25 (closest to the average) |
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 | refinement | X-PLOR | 3.851 | Brunger |
2 | structure solution | X-PLOR | 3.851 | Brunger |
3 | collection | XwinNMR | ||
4 | processing | NMRPipe | 1.7 | Delagilio |
5 | processing | Felix |