7LIE

The isolated chicken ASIC1a thumb domain (ATD-c1a) retains the structure and ligand binding properties of the full length chicken ASIC1a

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
2	3D CBCA(CO)NH	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
3	3D HNCACB	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
4	3D H(CCO)NH	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
5	3D HNCO	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
6	3D HBHA(CO)NH	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
7	3D 1H-15N NOESY	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
8	3D 1H-13C NOESY aliphatic	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
9	3D 1H-13C NOESY aromatic	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
10	2D 1H-1H NOESY	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
11	2D 1H-13C HSQC	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
12	3D HN(CA)CO	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900
13	3D C(CO)NH	320 uM [U-100% 13C; U-100% 15N] Thumb domain of the chicken acid-sensing ion channel 1a (cASIC1a)	95% H2O/5% D2O	50 mM Bis-Tris pH 7.0 mM	7.0	1 atm	298	Bruker AVANCE 900

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	900

NMR Refinement
Method	Details	Software
torsion angle dynamics	using automated NOE assignments	CYANA

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	20
Conformers Submitted Total Number	20
Representative Model	1 (target function)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin	4.0.7	Bruker Biospin
2	processing	Rowland NMR Toolkit (RNMRTK)	3.0	Hoch and Stern
3	peak picking	CcpNmr Analysis	2.4.2	CCPN
4	chemical shift assignment	CcpNmr Analysis	2.4.2	CCPN
5	structure calculation	CYANA	3.98.13	Guntert, Mumenthaler and Wuthrich
6	refinement	CYANA	3.98.13	Guntert, Mumenthaler and Wuthrich

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.