2LP2

Solution structure and dynamics of human S100A1 protein modified at cysteine 85 with homocysteine disulfide bond formation in calcium saturated form

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	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
2	2D 1H-15N HSQC NH2 only	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
3	2D 1H-13C HSQC aliphatic	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	100% D2O		7.2	ambient	310
4	2D 1H-13C HSQC aromatic	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	100% D2O		7.2	ambient	310
5	3D CBCA(CO)NH	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
6	3D C(CO)NH	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
7	3D HNCO	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
8	3D HNCA	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
9	3D HNCACB	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
10	3D HBHA(CO)NH	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
11	3D HCCH-TOCSY	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	100% D2O		7.2	ambient	310
12	3D 1H-13C NOESY aliphatic	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	100% D2O		7.2	ambient	310
13	3D 1H-13C NOESY aromatic	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	100% D2O		7.2	ambient	310
14	3D 1H-15N NOESY	1 mM [U-98% 13C; U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
15	2D 1H-15N HSQC (T1)	1 mM [U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
16	2D 1H-15N HSQC (T1)	1 mM [U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
17	2D 1H-15N HSQC (T1)	1 mM [U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
18	2D 1H-15N HSQC (T2)	1 mM [U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
19	2D 1H-15N HSQC (T2)	1 mM [U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
20	2D 1H-15N HSQC (T2)	1 mM [U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
21	2D 15N-{1H} NOE	1 mM [U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
22	2D 15N-{1H} NOE	1 mM [U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310
23	2D 15N-{1H} NOE	1 mM [U-98% 15N] S100A1 monomer, 10 mM Calcium ion, 50 mM TRIS-d11, 0.1 mM sodium azide, 50 mM sodium chloride	90% H2O/10% D2O		7.2	ambient	310

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

NMR Refinement
Method	Details	Software
simulated annealing	standard sa.inp xplor NIH protocol	CARA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	198
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

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