6CEI

Solution NMR Structure of Conotoxin GXIA from Conus geographus

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H NOESY	1 mg/mL conotoxin G117	90% H2O/10% D2O	0 M	5.1	ambient atm	298	Bruker AVANCE 600
4	2D 1H-1H TOCSY	1 mg/mL conotoxin G117	90% H2O/10% D2O	0 M	5.1	ambient atm	298	Bruker AVANCE 600
5	2D 1H-1H ECOSY	1 mg/mL conotoxin G117	90% H2O/10% D2O	0 M	5.1	ambient atm	298	Bruker AVANCE 600
2	2D 1H-15N HSQC	1 mg/mL conotoxin G117	90% H2O/10% D2O	0 M	5.1	ambient atm	298	Bruker AVANCE 600
6	2D 1H-1H NOESY	1 mg/mL conotoxin G117	90% H2O/10% D2O	0 M	5.1	ambient atm	298	Bruker AVANCE 600
7	2D 1H-1H TOCSY	1 mg/mL conotoxin G117	90% H2O/10% D2O	0 M	5.1	ambient atm	298	Bruker AVANCE 600
3	2D 1H-13C HSQC	1 mg/mL conotoxin G117	90% H2O/10% D2O	0 M	5.1	ambient atm	298	Bruker AVANCE 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600

NMR Refinement
Method	Details	Software
simulated annealing	Structures were calculated using torsion angle dynamics and subsequently refined and energy minimised in explicit solvent using Cartesian dynamics in CNS.	CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure calculation	CYANA	3.96	Guntert, Mumenthaler and Wuthrich
2	refinement	CNS	1.2	Brunger, Adams, Clore, Gros, Nilges and Read
3	chemical shift assignment	CARA		Keller and Wuthrich
4	data analysis	CARA		Keller and Wuthrich
5	data analysis	TALOS		Cornilescu, Delaglio and Bax