5O2Y

NMR structure of the calcium bound form of PulG, major pseudopilin from Klebsiella oxytoca T2SS

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600
2	3D HNCO	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600
3	HNCACO	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600
4	3D HNCACB	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600
5	3D CBCA(CO)NH	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600
6	3D HCCH-TOCSY	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600
7	3D H(CCO)NH	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600
8	3D 1H-15N NOESY	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Bruker AvanceIII 950
9	3D 1H-13C NOESY	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Bruker AvanceIII 950
10	2D 1H-13C HSQC	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600
11	3D CC(CO)NH	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600
12	2D HBCBCGCDHD	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600
13	2D HBCBCGCDCEHE	0.5 mM [U-99% 13C; U-99% 15N] PulG, 50 mM non-labeled HEPES, 50 mM non-labeled sodium chloride, 1 mM non-labeled CaCl2	90% H2O/10% D2O	50 mM	7	1 atm	298	Varian INOVA 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Bruker	AvanceIII	950

NMR Refinement
Method	Details	Software
simulated annealing		ARIA

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	200
Conformers Submitted Total Number	15
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR		Varian
2	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	chemical shift assignment	CcpNmr Analysis		CCPN
4	peak picking	CcpNmr Analysis		CCPN
5	collection	TopSpin		Bruker Biospin
6	processing	TopSpin		Bruker Biospin
7	structure calculation	ARIA		Linge, O'Donoghue and Nilges

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.