2MTQ

Solution Structure of a De Novo Designed Peptide that Sequesters Toxic Heavy Metals

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	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	90% H2O/10% D2O	100	7	ambient	298
2	3D HNCO	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	90% H2O/10% D2O	100	7	ambient	298
3	3D HNCA	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	90% H2O/10% D2O	100	7	ambient	298
4	3D HNCACB	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	90% H2O/10% D2O	100	7	ambient	298
5	3D HN(CO)CA	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	90% H2O/10% D2O	100	7	ambient	298
6	3D HNHA	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	90% H2O/10% D2O	100	7	ambient	298
7	3D HCCH-TOCSY	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	90% H2O/10% D2O	100	7	ambient	298
8	3D HCCH-COSY	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	90% H2O/10% D2O	100	7	ambient	298
9	2D 1H-13C HSQC	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	90% H2O/10% D2O	100	7	ambient	298
10	3D 1H-15N NOESY	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	90% H2O/10% D2O	100	7	ambient	298
11	3D 1H-13C NOESY aliphatic	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	100% D2O	100	7	ambient	298
12	3D 1H-13C NOESY aromatic	100 mM sodium chloride, 0.5 % sodium azide, 0.05 mM PMSF, 0.8 mM TCEP, 1 mM [U-100% 13C; U-100% 15N] protein	100% D2O	100	7	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Agilent	INOVA	800

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA	2.1	Guntert, Mumenthaler and Wuthrich
2	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	data analysis	Sparky		Goddard
4	peak picking	Sparky		Goddard
5	geometry optimization	TALOS		Cornilescu, Delaglio and Bax
6	refinement	na