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NMR structure determination of a synthetic analogue of the iturinic antibiotic bacillomycin Lc
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
DQF-COSY
6MM SYNTHETIC CYCLOPEPTIDE IN 100% DMSO-D6
AMBIENT
292
2
2D NOESY
6MM SYNTHETIC CYCLOPEPTIDE IN 100% DMSO-D6
AMBIENT
292
3
2D-TOCSY (HOHAHA)
6MM SYNTHETIC CYCLOPEPTIDE IN 100% DMSO-D6
AMBIENT
292
4
2D-ROESY
6MM SYNTHETIC CYCLOPEPTIDE IN 100% DMSO-D6
AMBIENT
292
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
DRX
500
NMR Refinement
Method
Details
Software
DISTANCE GEOMETRY SIMULATED ANNEALING
THE STRUCTURES ARE BASED ON A TOTAL OF 62 RESTRAINTS, 60 ARE NOE-DERIVED DISTANCE CONSTRAINTS, 2 DIHEDRAL ANGLE RESTRAINTS. THE 31 STRUCTURES WERE DIVIDED INTO TWO FAMILIES OF SIMILAR ENERGY WHICH ESSENTIALLY DIFFER IN THE NUMBER AND TYPE OF TURNS. THE TWO FAMILIES ARE S'1 (STRUCTURES 1-14) AND S'2 (STRUCTURES 15-31).
X-PLOR 3.851, CHARMM 22
NMR Ensemble Information
Conformer Selection Criteria
STRUCTURES WITH THE LEAST RESTRAINT VIOLATIONS, STRUCTURES WITH THE LOWEST ENERGY
Conformers Calculated Total Number
50
Conformers Submitted Total Number
31
Representative Model
1 (n/a)
Additional NMR Experimental Information
Details
THIS STRUCTURE WAS DETERMINED USING STANDARD 2D HOMONUCLEAR TECHNIQUES