6NAN

NMR structure determination of Ixolaris and Factor X interaction reveals a noncanonical mechanism of Kunitz inhibition

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D 1H-15N NOESY	100 uM [U-100% 15N] Ixolaris	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker AVANCE 800
2	3D 1H-13C NOESY aliphatic	100 uM [U-13C; U-15N] Ixolaris	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker AVANCE 800
3	2D 1H-15N HSQC	100 uM [U-100% 15N] Ixolaris	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker DRX 600
4	2D 1H-15N HSQC	100 uM [U-15N; U-2H] Ixolaris	90% H2O/10% D2O	0 mM	6.0	1 atm	303	Bruker AVANCE 800

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	800
2	Bruker	DRX	600

NMR Refinement
Method	Details	Software
na		CS-ROSETTA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure calculation	CS-ROSETTA	RASREC	Shen, Vernon, Baker and Bax