2LP3

Solution structure of S100A1 Ca2+

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
2	2D 1H-15N HSQC NH2 only	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
3	2D 1H-13C HSQC aliphatic	100 % D2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	100% D2O	50	6.8	ambient	310
4	2D 1H-13C HSQC aromatic	100 % D2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	100% D2O	50	6.8	ambient	310
5	3D CBCA(CO)NH	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
6	3D HNCO	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
7	3D HNCA	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
8	3D HNCACB	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
9	3D HBHA(CO)NH	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
10	3D HN(CO)CA	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
11	3D 1H-13C NOESY aliphatic	100 % D2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	100% D2O	50	6.8	ambient	310
12	3D HCCH-TOCSY	100 % D2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	100% D2O	50	6.8	ambient	310
13	3D 1H-13C NOESY aromatic	100 % D2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	100% D2O	50	6.8	ambient	310
14	3D 1H-15N NOESY	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 13C; U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
15	2D 1H-15N heteronuclear NOE	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
16	2D 1H-15N heteronuclear NOE	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
17	2D 1H-15N heteronuclear NOE	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
18	2D 1H-15N T1 relaxation	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
19	2D 1H-15N T1 relaxation	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
20	2D 1H-15N T1 relaxation	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
21	2D 1H-15N T2 relaxation	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
22	2D 1H-15N T2 relaxation	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310
23	2D 1H-15N T2 relaxation	10 % D2O, 90 % H2O, 50 mM sodium chloride, 10 mM CALCIUM ION, 0.8 mM [U-99% 15N] S100A1, 50 mM TRIS-d11	90% H2O/10% D2O	50	7.2	ambient	310

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	400
2	Varian	UNITYPLUS	500
3	Varian	Varian NMR System	700
4	Varian	Varian NMR System	800

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR_NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	210
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR_NIH		Schwieters, Kuszewski, Tjandra and Clore
2	data analysis	CYANA		Guntert, Mumenthaler and Wuthrich
3	constraints assignment	CYANA		Guntert, Mumenthaler and Wuthrich
4	structure solution	CYANA		Guntert, Mumenthaler and Wuthrich
5	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
6	chemical shift assignment	SPARKY		Goddard
7	data analysis	SPARKY		Goddard
8	chemical shift assignment	CARA		Keller and Wuthrich