2KEN

Solution NMR structure of the OB domain (residues 67-166) of MM0293 from Methanosarcina mazei. Northeast Structural Genomics Consortium target MaR214a.

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D HNCO	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
2	3D HNCA	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
3	3D HNCACB	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
4	3D CBCA(CO)NH	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
5	3D HCCH-TOCSY	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
6	3D H(CCO)NH	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
7	3D C(CO)NH	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
8	3D 1H-15N NOESY	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
9	3D 1H-13C NOESY	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
10	2D 1H-15N HSQC	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
11	2D 1H-13C HSQC	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
12	2D 1H-13C HSQC	1.2 mM [U-5% 13C; U-99% 15N] OB domain-13, 20 mM MES-14, 100 mM sodium chloride-15, 10 mM DTT-16, 5 mM calcium chloride-17, .02 % sodium azide-18	95% H2O/5% D2O	.1	6.5	ambient	293
13	4D 1H-13C NOESY	1.2 mM [U-100% 13C; U-100% 15N] OB domain-1, 20 mM MES-2, 100 mM sodium chloride-3, 10 mM DTT-4, 5 mM calcium chloride-5, .02 % sodium azide-6	95% H2O/5% D2O	.1	6.5	ambient	293
14	2D 1H-15N HSQC-TROSY	1.2 mM [U-5% 13C; U-99% 15N] OB domain-19, 20 mM MES-20, 100 mM sodium chloride-21, 10 mM DTT-22, 5 mM calcium chloride-23, .02 % sodium azide-24	95% H2O/5% D2O	.1	6.5	ambient	298
15	2D 1H-15N HSQC-TROSY	1.2 mM [U-5% 13C; U-99% 15N] OB domain-7, 20 mM MES-8, 100 mM sodium chloride-9, 10 mM DTT-10, 5 mM calcium chloride-11, .02 % sodium azide-12	95% H2O/5% D2O	.1	6.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	850
2	Varian	INOVA	600

NMR Refinement
Method	Details	Software
simulated annealing	autostructure and cyana were used to automatically assign NOE crosspeaks. xplor-NIH was used for refinement and refinement, including the HBDB potential. Refinement includes RDCs from samples aligned in Phage and PEG.	TopSpin

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin	2.1	Bruker Biospin
2	data analysis	Sparky	3.113	Goddard
3	chemical shift assignment	AutoAssign	2.3.0	Zimmerman, Moseley, Kulikowski and Montelione
4	structure solution	AutoStructure	2.2.1	Huang, Tejero, Powers and Montelione
5	data analysis	CYANA	2.1	Guntert, Mumenthaler and Wuthrich
6	data analysis	PSVS	1.3	Bhattacharya and Montelione
7	refinement	X-PLOR NIH	2.20	Schwieters, Kuszewski, Tjandra and Clore

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.