2K4R

NMR solution structure of the neurotrypsin kringle domain

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	1 MM [U-100% 15N] NT/K, 0.02% sodium azide, 90% H2O/10% D2O		NO SALT	5.2	AMBIENT	300
2	2D [1H-15N]-15N HMBC	1 MM [U-100% 15N] NT/K, 0.02% sodium azide, 90% H2O/10% D2O		NO SALT	5.2	AMBIENT	300
3	2D 1H-13C HSQC	1 MM [U-100% 15N] NT/K, 0.02% sodium azide, 90% H2O/10% D2O		NO SALT	5.2	AMBIENT	300
4	2D 1H-1H COSY	1 MM [U-100% 15N] NT/K, 0.02% sodium azide, 90% H2O/10% D2O		NO SALT	5.2	AMBIENT	300
5	2D 1H-1H TOCSY	1 MM [U-100% 15N] NT/K, 0.02% sodium azide, 90% H2O/10% D2O		NO SALT	5.2	AMBIENT	300
6	2D 1H-1H NOESY	1 MM [U-100% 15N] NT/K, 0.02% sodium azide, 90% H2O/10% D2O		NO SALT	5.2	AMBIENT	300
7	3D TOCSY-[1H-15N]-HSQC	1 MM [U-100% 15N] NT/K, 0.02% sodium azide, 90% H2O/10% D2O		NO SALT	5.2	AMBIENT	300
8	3D NOESY-[1H-15N]-HSQC	1 MM [U-100% 15N] NT/K, 0.02% sodium azide, 90% H2O/10% D2O		NO SALT	5.2	AMBIENT	300
9	3D HNHA	1 MM [U-100% 15N] NT/K, 0.02% sodium azide, 90% H2O/10% D2O		NO SALT	5.2	AMBIENT	300
10	3D HNHB	1 MM [U-100% 15N] NT/K, 0.02% sodium azide, 90% H2O/10% D2O		NO SALT	5.2	AMBIENT	300

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

NMR Refinement
Method	Details	Software
simulated annealing	THE AUTOMATED NOESY ASSIGNMENT AND STRUCTURE CALCULATIONS CARRIED OUT BY BACUS/CNS. FINAL STRUCTURE REFINEMENT IN AN EXPLICIT SHELL OF WATER WAS PERFORMED USING ARIA/CNS, ON THE BASIS OF FIXED UNAMBIGUOUS DISTANCE RESTRAINTS AND STRUCTURES OBTAINED WITH BACUS/CNS, AND RESTRAINTS ON DIHEDRAL ANGLES AND HYDROGEN BONDS. NOTE THAT RESIDUES 1 - 7 AT THE N-TERMINUS AND RESIDUES 73 - 77 AT THE C-TERMINUS ARE DISORDERED.	ARIA/CNS

NMR Ensemble Information
Conformer Selection Criteria	STRUCTURES WITH THE LEAST RESTRAINT VIOLATIONS, STRUCTURES WITH THE LOWEST ENERGY
Conformers Calculated Total Number	70
Conformers Submitted Total Number	29
Representative Model	1 (conformer with the lowest rmsd to the mean coordinates of the ensemble)

Additional NMR Experimental Information
Details	CHEMICAL SHIFT REFERENCE: 1,4-DIOXANE, 3.75 PPM. SPECTRA USED FOR NOESY ASSIGNMENT AND STRUCTURE CALCULATIONS WERE: 2D [1H-1H]-NOESY (MIXING TIME OF 100 MS) AND 3D NOESY-[1H-15N]-HSQC (MIXING TIME OF 200 MS).

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	ARIA/CNS	2.0	LINGE, J., NILGES, M., HABECK, M., RIEPING, W.
2	structure solution	ARIA/CNS	2.0	LINGE, J., NILGES, M., HABECK, M., RIEPING, W.
3	structure solution	BACUS
4	structure solution	CNS	1.1
5	structure solution	CcpNmr Analysis	1.4