2YYF | pdb_00002yyf

Purification and structural characterization of a D-amino acid containing conopeptide, marmophine, from Conus marmoreus

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2.0mM, 90% H2O, 10% D2O	90% H2O/10% D2O		3.0	ambient	300
2	2D TOCSY	2.0mM, 90% H2O, 10% D2O	90% H2O/10% D2O		3.0	ambient	300
3	DQF-COSY	2.0mM, 90% H2O, 10% D2O	90% H2O/10% D2O		3.0	ambient	300
4	2D NOESY	2.0mM	99.99% D2O		3.0	ambient	300
5	2D TOCSY	2.0mM	99.99% D2O		3.0	ambient	300
6	DQF-COSY	2.0mM	99.99% D2O		3.0	ambient	300

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

NMR Refinement
Method	Details	Software
The structure is based on a total of 236 constraints, 226 are NOE-derived distance constraints, 8 dihedral constraints, 2 constraints from one hydrogen bonds s, using distance geometry, simulated annealing by CYANA 2.1 soft to determine the structure, and using molecular dynamics mothod to do the structurn refinement by AMBER 9.0.		XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	3.5	Bruker Inc.
2	processing	TopSpin	1.3B	Bruker Inc.
3	structure solution	Sparky	3.110	T. D. Goddard and D. G. Kneller
4	structure solution	CYANA	2.1	L. A. Systems, Inc.
5	refinement	Amber	9.0