Solution Structure of the N-terminal Zinc Fingers of the Xenopus laevis double stranded RNA binding protein ZFa
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 3D_15N-separated_NOESY | 1mM dsRBP-ZFa2-128 U-15N, 25mM Tris-Buffer, 100mM NaCl, 2mM DTT, pH=6.9, 95% H2O, 5% D2O | 95% H2O/5% D2O | 100mM NaCl | 6.9 | ambient | 298 | |
| 2 | 3D_13C-separated_NOESY | 1mM dsRBP-ZFa2-128 U-15N,13C, 25mM Tris-Buffer, 100mM NaCl, 2mM DTT, pH=6.9 | 100% D2O | 100mM NaCl | 6.9 | ambient | 298 | |
| 3 | HNHA | 1mM dsRBP-ZFa2-128 U-15N, 25mM Tris-Buffer, 100mM NaCl, 2mM DTT, pH=6.9, 95% H2O, 5% D2O | 95% H2O/5% D2O | 100mM NaCl | 6.9 | ambient | 298 | |
| 4 | 3D_HACAHB-COSY | 1mM dsRBP-ZFa2-128 U-15N,13C, 25mM Tris-Buffer, 100mM NaCl, 2mM DTT, pH=6.9 | 100% D2O | 100mM NaCl | 6.9 | ambient | 298 | |
| 5 | 13C [13CO] and 13C [15N] spin-echo difference CT HSQC | 1mM dsRBP-ZFa2-128 U-15N,13C, 25mM Tris-Buffer, 100mM NaCl, 2mM DTT, pH=6.9 | 100% D2O | 100mM NaCl | 6.9 | ambient | 298 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 900 |
| 2 | Bruker | DMX | 750 |
| 3 | Bruker | DRX | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | 1142 unique NOE restraints, 216 dihedral angle restraints | XwinNMR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the least restraint violations |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (fewest violations) |
| Additional NMR Experimental Information | |
|---|---|
| Details | The protein consists of two domains that tumble more or less independently. The linker connecting both domains is completely disorderd. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | XwinNMR | 2.1-3.5 | Bruker |
| 2 | processing | NMRPipe | 2.3 | F.Delaglio,S.Grzesiek,G.W.Vuister,Z.Guang,J.Pfeifer,A.Bax |
| 3 | data analysis | NMRView | 5.0.4 | B.A.Johnson,R.A.Blevins |
| 4 | structure solution | CYANA | 1.0.5 | P.Guntert,C.Mumenthaler,K.Wuthrich |
| 5 | refinement | Amber | 8 | D.A.Case,T.Cheatham,T.Darden,H.Gohlke,R.Luo,K.M.J.Merz,A.Onufriev,C.Simmerling,B.Wang,R.Woods. |
