2LVW

Solution NMR studies of the dimeric regulatory subunit IlvN of the E.coli Acetohydroxyacid synthase I (AHAS I)

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	0.4mM [U-98% 15N] IlvN-1, 20mM potassium phosphate-2, 20mM sodium chloride-3, 1mM EDTA-4, 0.01% sodium azide-5, 5mM L-Valine-6, 90% H2O-7, 10% D2O-8	90% H2O/10% D2O		7.0	1 atm	303
2	2D 1H-13C HSQC	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
3	3D HNCA	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
4	3D HN(CO)CA	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
5	3D trHNCACB	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
6	3D trCBCA(CO)NH	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
7	3D HNCO	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
8	3D HBHA(CO)NH	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
9	3D HCCH-COSY	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
10	3D HCCH-TOCSY	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
11	2D (HB)CB(CGCD)HD	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
12	2D (HB)CB(CGCDCE)HE	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
13	2D tr 1H-13C HSQC (AROMATIC)	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303
14	3D 1H-15N NOESY	0.4mM [U-98% 15N] IlvN-1, 20mM potassium phosphate-2, 20mM sodium chloride-3, 1mM EDTA-4, 0.01% sodium azide-5, 5mM L-Valine-6, 90% H2O-7, 10% D2O-8	90% H2O/10% D2O		7.0	1 atm	303
15	3D 1H-13C NOESY	0.4mM [U-98% 13C; U-98% 15N] IlvN-9, 20mM potassium phosphate-10, 20mM sodium chloride-11, 1mM EDTA-12, 0.01% sodium azide-13, 5mM L-Valine-14, 90% H2O-15, 10% D2O-16	90% H2O/10% D2O		7.0	1 atm	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	700

NMR Refinement
Method	Details	Software
simulated annealing		NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
2	data analysis	ANSIG		Kraulis
3	collection	XwinNMR		Bruker Biospin
4	collection	TopSpin		Bruker Biospin
5	data analysis	TALOS		Cornilescu, Delaglio and Bax
6	data analysis	PSVS		Bhattacharya and Montelione
7	data analysis	MOLMOL		Koradi, Billeter and Wuthrich
8	structure solution	CYANA		Guntert, Mumenthaler and Wuthrich
9	refinement	CNS		Brunger, Adams, Clore, Gros, Nilges and Read

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.