Solution structure of oxidized and amidated human IAPP (1-37), the diabetes II peptide.
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D 1H-15N HSQC | 150 uM [U-99% 13C; U-99% 15N] Islet Amyloid Polypeptide (IAPP or Amylin) | 90% H2O/10% D2O | 0 | 5.3 | 1 atm | 278 | Bruker AVANCE 500 |
| 2 | 2D 1H-13C HSQC | 150 uM [U-99% 13C; U-99% 15N] Islet Amyloid Polypeptide (IAPP or Amylin) | 90% H2O/10% D2O | 0 | 5.3 | 1 atm | 278 | Bruker AVANCE 500 |
| 3 | 3D HNCACB | 150 uM [U-99% 13C; U-99% 15N] Islet Amyloid Polypeptide (IAPP or Amylin) | 90% H2O/10% D2O | 0 | 5.3 | 1 atm | 278 | Bruker AVANCE 500 |
| 4 | 3D CBCA(CO)NH | 150 uM [U-99% 13C; U-99% 15N] Islet Amyloid Polypeptide (IAPP or Amylin) | 90% H2O/10% D2O | 0 | 5.3 | 1 atm | 278 | Bruker AVANCE 500 |
| 5 | 3D HCCH-TOCSY | 150 uM [U-99% 13C; U-99% 15N] Islet Amyloid Polypeptide (IAPP or Amylin) | 90% H2O/10% D2O | 0 | 5.3 | 1 atm | 278 | Bruker AVANCE 600 |
| 6 | 3D 1H-15N NOESY | 150 uM [U-99% 13C; U-99% 15N] Islet Amyloid Polypeptide (IAPP or Amylin) | 90% H2O/10% D2O | 0 | 5.3 | 1 atm | 278 | Bruker AVANCE 750 |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 500 |
| 2 | Bruker | AVANCE | 600 |
| 3 | Bruker | AVANCE | 750 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| molecular dynamics | CNS | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 200 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (closest to the average) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | CNS | Brunger A. T. et.al. | |
| 6 | chemical shift assignment | Sparky | Goddard | |
| 5 | processing | TopSpin | Bruker Biospin | |
| 2 | structure calculation | CYANA | Guntert, Mumenthaler and Wuthrich | |
| 4 | peak picking | Sparky | Goddard | |














