1MB6
Three dimensional solution structure of huwentoxin-IV by 2D 1H-NMR
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | NOESY | 5MM HUWENTOXIN-IV MMOL/L PHOSPHATE BUFFER; 90%H2O, 10%D2O | 90% H2O/10% D2O | 20 | 4.50 | 1 atm | 300.00 | |
2 | DQF-COSY | 5MM HUWENTOXIN-IV MMOL/L PHOSPHATE BUFFER; 90%H2O, 10%D2O | 90% H2O/10% D2O | 20 | 4.50 | 1 atm | 300.00 | |
3 | TOCSY | 5MM HUWENTOXIN-IV MMOL/L PHOSPHATE BUFFER; 90%H2O, 10%D2O | 90% H2O/10% D2O | 20 | 4.50 | 1 atm | 300.00 | |
4 | E-COSY | 5MM HUWENTOXIN-IV MMOL/L PHOSPHATE BUFFER; 90%H2O, 10%D2O | 90% H2O/10% D2O | 20 | 4.50 | 1 atm | 300.00 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DMX | 500 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing | THE STRUCTURES ARE BASED ON 527 NOE-DERIVED DISTANCE CONSTRAINTS, 14 DIHEDRAL ANGEL RESTRAINTS AND 9 FAKE DISTANCE RESTRAINTS FROM DISULFIDE BONDS. | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 50 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (closest to the average) |
Additional NMR Experimental Information | |
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Details | THIS STRUCTURE WAS DETERMINED USING STANDARD 2D HOMONUCLEAR TECHNIQUES. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | refinement | X-PLOR | 3.851 | BRUNGER |
2 | structure solution | FELIX | 98.0 | MSI.Corp. |