2MKL

Solution structure of the fourth constant immunoglobulin domain of nurse shark IgNAR

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
2	2D 1H-13C HSQC aliphatic	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
3	2D 1H-13C HSQC aromatic	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
4	3D CBCA(CO)NH	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
5	3D HNCO	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
6	3D HNCA	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
7	3D HNCACB	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
8	3D HBHA(CO)NH	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
9	3D HCCH-TOCSY	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
10	3D 1H-15N NOESY	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
11	3D 1H-13C NOESY aliphatic	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
12	3D 1H-13C NOESY aromatic	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
13	2D 1H-13C HSQC aliphatic	300-500 uM [U-10% 13C] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide	90% H2O/10% D2O		7.4	ambient	298
14	2D 1H-15N HSQC	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide, 10 mg/mL Pf1 phage	90% H2O/10% D2O		7.4	ambient	298
15	3D HNCO	300-500 uM [U-100% 13C; U-100% 15N] protein, 137 mM sodium chloride, 2.7 mM potassium chloride, 10 mM sodium phosphate, 2 mM potassium phosphate, 0.02 % sodium azide, 10 mg/mL Pf1 phage	90% H2O/10% D2O		7.4	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	750
3	Bruker	AVANCE	800
4	Bruker	AVANCE	900

NMR Refinement
Method	Details	Software
simulated annealing		CARA

NMR Ensemble Information
Conformer Selection Criteria	structures with acceptable covalent geometry
Conformers Calculated Total Number	20
Conformers Submitted Total Number	10
Representative Model	1 (fewest violations)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	CARA		Keller and Wuthrich
2	peak picking	CARA		Keller and Wuthrich
3	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
4	structure calculation	CYANA	3.0	Guntert, Mumenthaler and Wuthrich
5	water refinement	ARIA		Linge, O'Donoghue and Nilges
6	refinement	ARIA		Linge, O'Donoghue and Nilges