Solution structure of PI7, a non toxic peptide isolated from the scorpion Pandinus Imperator.
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | NOESY | H2O/D2O | 3.5 | 1 atm | 308 | |||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | UNITY | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | THE STRUCTURE WAS CALCULATED USING THE PROGRAM DYANA. TWENTY FIVE BEST DYANA CONFORMERS WERE SUBMITTED TO RESTRAINED ENERGY MINIMIZATION IN A SHELL OF 584 WATER MOLECULES USING THE PROGRAM OPAL. COORDINATES FOR THE WATER ARE NOT CONTAINED IN THIS ENTRY. FOR FURTHER DETAILS ON THE REFINEMENT SEE THE JRNL CITATION ABOVE. | OPAL |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | LEAST RESTRAINT VIOLATION, STRUCTURE QUALITY ACCORDING TO PROCHECK |
| Conformers Calculated Total Number | 200 |
| Conformers Submitted Total Number | 14 |
| Representative Model | 1 (n/a) |
| Additional NMR Experimental Information | |
|---|---|
| Details | THE STRUCTURE OF THE NATURAL TOXIN EXTRACTED FROM THE SCORPION VENOM WAS DETERMINED BY HOMONUCLEAR NMR AT 500 MHZ FROM NANOMOLE AMOUNT OF COMPOUND. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | OPAL | LUGINBUHL,GUNTERT,BILLETER,WUTHRICH | |
| 2 | structure solution | DYANA | ||
| 3 | structure solution | OPAL | ||
