Experiment: 1Y03

Solution structure of a recombinant type I sculpin antifreeze protein

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TOCSY	1mM rSS3; pH adjusted to 5.0 using NaOH	95% H2O/5% D2O	low	5	ambient	278
2	2D NOESY	1mM rSS3; pH adjusted to 5.0 using NaOH	95% H2O/5% D2O	low	5	ambient	278
3	DQF-COSY	1mM rSS3; pH adjusted to 5.0 using NaOH	95% H2O/5% D2O	low	5	ambient	278
4	HNHA	1mM rSS3 U-15N,13C; pH adjusted to 5.0 using NaOH	95% H2O/5% D2O	low	5	ambient	278
5	HNCA	1mM rSS3 U-15N,13C; pH adjusted to 5.0 using NaOH	95% H2O/5% D2O	low	5	ambient	278
6	HNCACB	1mM rSS3 U-15N,13C; pH adjusted to 5.0 using NaOH	95% H2O/5% D2O	low	5	ambient	278
7	CBCA(CO)NH	1mM rSS3 U-15N,13C; pH adjusted to 5.0 using NaOH	95% H2O/5% D2O	low	5	ambient	278
8	HNCO	1mM rSS3 U-15N,13C; pH adjusted to 5.0 using NaOH	95% H2O/5% D2O	low	5	ambient	278
9	HNCA-ECOSY	1mM rSS3 U-15N,13C; pH adjusted to 5.0 using NaOH	95% H2O/5% D2O	low	5	ambient	278
10	HET-NOE	1mM rSS3 U-15N,13C; pH adjusted to 5.0 using NaOH	95% H2O/5% D2O	low	5	ambient	278

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

NMR Refinement
Method	Details	Software
simulated annealing, molecular dynamics, torsion angle dynamics	Structure calculations were performed using the package ARIA 1.2. Final stuctures are based on 437 unambiguous restraints, 18 sets of ambiguous restraints, 46 dihedral angle restraints and 18 HN residual dipolar coupling restraints.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	500
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	This structure was determined using standard triple-resonance NMR spectroscopy.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	XwinNMR	2.5	Bruker
2	data analysis	XEASY	1.3.13	Bartels et al
3	data analysis	Sparky	3	Goddard and Kneller
4	structure solution	ARIA	1.2	Linge et al
5	refinement	ARIA	1.2	Linge et al