SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Sample Contents4 mM heliomicin-LL ; 40mM sodium acetate buffer
Solvent90% H2O/10% D2O
Ionic Strength40mM sodium acetate buffer
pH4.3
Pressureambient
Temperature (K)293
Experiment(s):2D 1H DQF-COSY; TQF-COSY; TOCSY; NOESY
Spectrometer Information
Manufacturer Model Field Strength
Bruker AMX 500.0
NMR Refinement
Method torsion angle dynamics (DYANA) and energy minimisation (XPLOR)
Details the structures are based on a total of 120 intra-residue, 172 sequential, 108 medium range, 190 long range NOE-derived distance restraints, 9 distances restraints corresponding to the 3 disulfide bridge, 100 dihedral angle restraints, and 13 distance restraints for hydrogen bonds
NMR Ensemble Information
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 40
Conformers Submitted Total Number 18
Representative Model Choice Rationale
1 lowest target function
Additional NMR Experimental Information
1 This structure was determined using standard 2D homonuclear techniques.
Computation: NMR Software
# Classification Software Name Author
1 collection UXNMR --
2 data analysis XEASY Bartels
3 refinement DYANA Guentert
4 refinement X-PLOR Brunger