1TM6
NMR Structure of the Free Zinc Binding C-terminal Domain of SecA
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D TOCSY | 2.5mM protein, 2.7mM ZnCl, 10mM PO4 buffer | 10% D2O; 90% H2O | 2.7mM ZnCl; 10mM PO4 buffer | 7.40 | 1 atm | 298 | |
2 | 2D NOESY | 2.5mM protein, 2.7mM ZnCl, 10mM PO4 buffer | 10% D2O; 90% H2O | 2.7mM ZnCl; 10mM PO4 buffer | 7.40 | 1 atm | 298 | |
3 | Natural Abundance N-HSQC | 2.5mM protein, 2.7mM ZnCl, 10mM PO4 buffer | 10% D2O; 90% H2O | 2.7mM ZnCl; 10mM PO4 buffer | 6.03 | 1 atm | 298 | |
4 | Natural Abundance C-HSQC | 2.5mM protein, 2.7mM ZnCl, 10mM PO4 buffer | 99% D20; 1% H20 | 2.7mM ZnCl; 10mM PO4 buffer | 6.43 | 1 atm | 298 | |
5 | Hydrogen Exchange | 1.4mM protein, 1.6mM ZnCl, 10mM PO4 buffer | 99.96% D2O | 1.6mM ZnCl; 10mM PO4 buffer | 6.14 | 1 atm | 298 | |
6 | 2D NOESY | 2.5mM protein, 2.7mM ZnCl, 10mM PO4 buffer | 99% D20; 1% H20 | 2.7mM ZnCl; 10mM PO4 buffer | 6.43 | 1 atm | 298 | |
7 | E-COSY | 2.5mM protein, 2.7mM ZnCl, 10mM PO4 buffer | 99% D20; 1% H20 | 2.7mM ZnCl; 10mM PO4 buffer | 6.43 | 1 atm | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 500 |
2 | Varian | INOVA | 500 |
3 | Varian | INOVA | 500 |
4 | Varian | INOVA | 500 |
NMR Refinement | ||
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Method | Details | Software |
standard x-plor protocol; 1. distance geometry sub-embed 2. distance geometry full embed 3. simulated annealing 4. simulated annealing refine | Felix |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with acceptable covalent geometry,structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy,target function |
Conformers Calculated Total Number | 500 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (closest to the average,fewest violations,lowest energy) |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | data analysis | Felix | 2000 | |
2 | refinement | X-PLOR | 3.851 |