1LMJ
NMR Study of the Fibrillin-1 cbEGF12-13 Pair of Ca2+ Binding Epidermal Growth Factor-like Domains
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 20 mM CaCl2, 4.55 mM Tris, 3.6 mM protein | 99.9% D2O | 20 mM CaCl2, 4.55 mM Tris | 6.5 | ambient | 306 | |
2 | 3D_15N-separated_NOESY | 20 mM CaCl2, 4.55 mM Tris, 3.8 mM 15N-protein | 90% H2O/10% D2O | 20 mM CaCl2, 4.55 mM Tris | 6.5 | ambient | 306 | |
3 | HMQC-J | 20 mM CaCl2, 4.55 mM Tris, 3.8 mM 15N-protein | 90% H2O/10% D2O | 20 mM CaCl2, 4.55 mM Tris | 6.5 | ambient | 306 | |
4 | HSQC (slow HN) | 20 mM CaCl2, 4.55 mM Tris, 3.8 mM 15N-protein | 90% H2O/10% D2O | 20 mM CaCl2, 4.55 mM Tris | 6.5 | ambient | 306 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | GE | OMEGA | 500 |
2 | GE | OMEGA | 600 |
3 | GE | OMEGA | 750 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing | 1892 distance constraints including 411 ambiguous constraints, 26 torsion angle phi restraints, 24 restraints for 12 hydrogen bonds RMSD from experimental restraints All 0.013+/-0.001 (1932) Intraresidue 0.009+/-0.002 (504) Sequential 0.011+/-0.002 (388) Short-range (i-j<=4) (211) 0.015+/-0.003 Long-range 0.013+/-0.002 (378) Ambiguous 0.015+/-0.002 (411) H-bonds 0.014+/-0.004 (24) Calcium 0.012+/-0.005 (16) RMSD Phi rest. 0.177+/-0.093 (26) | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with acceptable covalent geometry |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 25 |
Representative Model | 6 (closest to the average) |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | structure solution | X-PLOR | 3.81 | Brunger |
2 | refinement | X-PLOR | 3.81 | Brunger |