1M12
NMR solution structure of human Saposin C
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 3D_15N-separated_NOESY | U-15N | 90% H20, 10% D20 | ~10-20mM NaCl | 6.8 | ambient | 298 | |
2 | 4D_13C/15N-separated_NOESY | U-15N, U-13C | 90% H20, 10% D20 | ~10-20mM NaCl | 6.8 | ambient | 298 | |
3 | 4D_13C-separated_NOESY | U-15N, U-13C | 100% D20 | ~10-20mM NaCl | 6.8 | ambient | 298 | |
4 | 3D_13C-separated_TOCSY | U-15N, U-13C | 100% D20 | ~10-20mM NaCl | 6.8 | ambient | 298 | |
5 | CBCACONH, HNCACB | U-15N, U-13C | 90% H20, 10% D20 | ~10-20mM NaCl | 6.8 | ambient | 298 | |
6 | experiments for residual dipolar coupling measurements | U-15N, U-13C | 90% H20, 10% D20 | ~10-20mM NaCl | 6.8 | ambient | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 600 |
2 | Bruker | DMX | 800 |
NMR Refinement | ||
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Method | Details | Software |
distance geometry and simulated annealing | structures were calculated with: 1806 NOE-derived destance constriants (no intra-residue NOEs used), 28 hydrogen bonds, 135 dihedral restraints, 276 residual dipolar couplings. Residues 1-3 and 79-84 are disordered. Superimposition of structures is from residues 4-78. | XwinNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 163 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (lowest energy) |
Additional NMR Experimental Information | |
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Details | residual dipolar couplings measured in two different alignment media. Pf1 and fd phages |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | collection | XwinNMR | 2.5 | Bruker |
2 | processing | NMRPipe | 2.1 | Delagio |
3 | data analysis | PIPP | 4.2.8 | Garrett |
4 | refinement | X-PLOR | 3.840 | Brunger |