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Conformations of macrocyclic peptides sampled by exact NOEs: models for cell-permeability. NMR structure of Omphalotin A in methanol / water indoleOut conformation.
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
2D 1H-1H NOESY
20 uM omphalotin A
methanol/water
0 M
7
1 bar
278
Bruker AVANCE III HD 900
2
2D 1H-1H TOCSY
20 uM omphalotin A
methanol/water
0 M
7
1 bar
278
Bruker AVANCE III HD 900
3
2D 1H-13C HSQC
20 uM omphalotin A
methanol/water
0 M
7
1 bar
278
Bruker AVANCE III HD 900
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AVANCE III HD
900
NMR Refinement
Method
Details
Software
simulated annealing
Amber
NMR Ensemble Information
Conformer Selection Criteria
structures with the least restraint violations
Conformers Calculated Total Number
100
Conformers Submitted Total Number
20
Representative Model
13 (fewest violations)
Computation: NMR Software
#
Classification
Version
Software Name
Author
1
processing
TopSpin
4.0.7
Bruker Biospin
2
structure calculation
CYANA
Guntert, Mumenthaler and Wuthrich
3
refinement
Amber
22
Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman