7O2K

NMR solution structue of cytotoxin 2 from Naja Kaouthia

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2 mM cytotoxin 2, 3 mM Cytotoxin 3	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker AVANCE III 800
2	2D TOCSY	2 mM cytotoxin 2, 3 mM Cytotoxin 3	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker AVANCE III 800
3	2D NOESY	2 mM cytotoxin 2, 3 mM Cytotoxin 3	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker AVANCE 700
4	2D 1H-1H COSY	2 mM cytotoxin 2, 3 mM Cytotoxin 3	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker AVANCE III 800
5	2D 1H-13C HSQC	2 mM cytotoxin 2, 3 mM Cytotoxin 3	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker AVANCE III 800
6	2D 1H-15N HSQC	2 mM cytotoxin 2, 3 mM Cytotoxin 3	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker AVANCE III 800
7	2D 1H-13C HSQC-TOCSY	2 mM cytotoxin 2, 3 mM Cytotoxin 3	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker AVANCE III 800

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	800
2	Bruker	AVANCE	700

NMR Refinement
Method	Details	Software
torsion angle dynamics	582 NOE constraints, 109 angular constraints, 27 H-bonds, 4 SS-bonds	CYANA

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (fewest violations)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CYANA		Guntert P.
2	structure calculation	CYANA	1.0.3	Guntert, Mumenthaler and Wuthrich
3	chemical shift assignment	CARA	1.8.4	Keller and Wuthrich
4	peak picking	CARA	1.8.4	Keller and Wuthrich