1K19

NMR Solution Structure of the Chemosensory Protein CSP2 from Moth Mamestra brassicae

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2 mM of unlabeled protein, in 90% H2O and 10% D2O containing 10mM of sodium phosphate buffer, 25 mM NaCl at pH 6.9			6.9	ambient	296
2	3D_15N-separated_NOESY	2 mM of unlabeled protein, in 90% H2O and 10% D2O containing 10mM of sodium phosphate buffer, 25 mM NaCl at pH 6.9
3	3D_15N-separated_NOESY	1 mM of uniformly labeled protein, in 90% H2O and 10% D2O containing 10mM of sodium phosphate buffer, 25 mM NaCl at pH 6.9
4	DQF-COSY	2 mM of unlabeled protein, in 90% H2O and 10% D2O containing 10mM of sodium phosphate buffer, 25 mM NaCl at pH 6.9			6.9	ambient	296

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500
2	Varian	INOVA	750

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	50
Conformers Submitted Total Number	20
Representative Model	1 (fewest violations,lowest energy)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homonuclear techniques combined with 3D Heteronuclear techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.1
2	data analysis	XEASY	1.3.13
3	processing	NMRPipe	1.8
4	structure solution	DIANA	2.8
5	data analysis	DYANA	1.5
6	processing	MOLMOL	2.6
7	refinement	CNS	1.0
8	data analysis	Turbo-Frodo	March 2001 release a