2M1M

Solution structure of the PsIAA4 oligomerization domain reveals interaction modes for transcription factors in early auxin response

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
2	2D 1H-13C HSQC aliphatic	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
3	2D 1H-13C HSQC aromatic	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
4	3D HNCA	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
5	3D HNCACB	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
6	3D HN(COCA)CB	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
7	3D 1H-15N NOESY	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
8	3D 1H-13C NOESY aliphatic	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
9	3D 1H-13C NOESY aromatic	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
10	2D 1H-1H NOESY	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
11	3D HNCO	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298
12	3D HCCH-TOCSY	1 mM [U-98% 13C; U-98% 15N] PSIAA4, 50 mM sodium phosphate, 100 mM sodium chloride, 2 mM magnesium chloride, 1 mM DTT	90% H2O/10% D2O	0.112	2.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	Avance	600

NMR Refinement
Method	Details	Software
simulated annealing		TOPSPIN

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	300
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TOPSPIN	2.3	Bruker Biospin
2	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	data analysis	NMRView		Johnson, One Moon Scientific
4	structure solution	ARIA		Linge, O'Donoghue and Nilges
5	refinement	ARIA		Linge, O'Donoghue and Nilges

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.