2B0F

NMR Structure of the Human Rhinovirus 3C Protease (serotype 14) with covalently bound Ace-LEALFQ-ethylpropionate inhibitor

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	0.75mM HRV14-3C with covalent inhibitor 20mM KH2PO4 15mM DTT 0.5mM EDTA 0.1mM DSS pH 6.5; 90% H2O, 10% D2O	90% H2O/10% D2O	20mM KH2PO4	6.5	ambient	25
2	3D_15N-separated_NOESY	0.75mM HRV14-3C with covalent inhibitor 20mM KH2PO4 15mM DTT 0.5mM EDTA 0.1mM DSS pH 6.5; 90% H2O, 10% D2O	90% H2O/10% D2O	20mM KH2PO4	6.5	ambient	25
3	3D_13C-separated_NOESY	0.75mM HRV14-3C with covalent inhibitor 20mM KH2PO4 15mM DTT 0.5mM EDTA 0.1mM DSS pD 6.5; 99.96% D2O	99.96% D2O	20mM KH2PO4	6.5	ambient	25
4	2D NOESY	0.75mM HRV14-3C with covalent inhibitor 20mM KH2PO4 15mM DTT 0.5mM EDTA 0.1mM DSS pD 6.5; 99.96% D2O	99.96% D2O	20mM KH2PO4	6.5	ambient	25
5	HNHA	0.75mM HRV14-3C with covalent inhibitor 20mM KH2PO4 15mM DTT 0.5mM EDTA 0.1mM DSS pH 6.5; 90% H2O, 10% D2O	90% H2O/10% D2O	20mM KH2PO4	6.5	ambient	25
6	15N HSQC	0.75mM HRV14-3C with covalent inhibitor 20mM KH2PO4 15mM DTT 0.5mM EDTA 0.1mM DSS pD 6.5; 99.96% D2O	99.96% D2O	20mM KH2PO4	6.5	ambient	25

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500

NMR Refinement
Method	Details	Software
simulated annealing molecular dynamics torsion angle dynamics RECOORD water refinement		X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	back calculated data agree with experimental NOESY spectrum,structures with acceptable covalent geometry,structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	H-bond donors determined from 15N HSQC exchanged into D2O. 3J HNHA couplings determined from HNHA. 13C-seperated NOESY collected in 99.96% D2O without wet water suppression to achieve cross strand beta-sheet HA-HA NOEs.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR	XPLOR-NIH v.2.10	Brunger
2	refinement	CNS	1.1	Brunger

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.