1EF4

SOLUTION STRUCTURE OF THE ESSENTIAL RNA POLYMERASE SUBUNIT RPB10 FROM METHANOBACTERIUM THERMOAUTOTROPHICUM

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D METHYL-METHYL 13C_ SEPARATED NOESY	0.5MM RPB10 U-15N,13C 20MM DEUTERATED D-TRIS; 0.15M NACL; 2MM BETA- MERCAPTOETHANOL; 99% D2O, 1% H2O		150mM_NACL	7.50	AMBIENT	303.00
2	2D NOESY	0.5MM RPB10 U-15N,13C 20MM DEUTERATED D-TRIS; 0.15M NACL; 2MM BETA- MERCAPTOETHANOL; 99% D2O, 1% H2O		150mM_NACL	7.50	AMBIENT	303.00
3	3D_13C-SEPARATED_ NOESY	0.5MM RPB10 U-15N,13C 20MM DEUTERATED D-TRIS; 0.15M NACL; 2MM BETA- MERCAPTOETHANOL; 99% D2O, 1% H2O		150mM_NACL	7.50	AMBIENT	303.00
4	3D_15N-SEPARATED_ NOESY	0.5MM RPB10 U-15N,13C 20MM DEUTERATED D-TRIS; 0.15M NACL; 2MM BETA- MERCAPTOETHANOL; 99% D2O, 1% H2O		150mM_NACL	7.50	AMBIENT	303.00
5	HNHA	0.5MM RPB10 U-15N,13C 20MM DEUTERATED D-TRIS; 0.15M NACL; 2MM BETA- MERCAPTOETHANOL; 99% D2O, 1% H2O		150mM_NACL	7.50	AMBIENT	303.00
6	2D CT-HMQC-J	0.5MM RPB10 U-15N,13C 20MM DEUTERATED D-TRIS; 0.15M NACL; 2MM BETA- MERCAPTOETHANOL; 99% D2O, 1% H2O		150mM_NACL	7.50	AMBIENT	303.00

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITY	500

NMR Refinement
Method	Details	Software
DISTANCE GEOMETRY WITH SIMULATED ANNEALING	REFINED USING ARIA AMBIGUOUS AND UNAMBIGUOUS RESTRAINTS, AND INCLUDING RESTRAINTS FOR DIHEDRAL ANGLES AND HYDROGEN BOND DISTANCES. ZINC COORDINATION TO CYS 6,9,43,44 WITH IDEALIZED TETRAHEDRAL RESTRAINTS WERE ADDED IN THE FINAL ROUNDS OF REFINEMENT; THE COORDINATING LIGANDS AND THEIR GEOMETRIC ARRANGEMENT WERE IDENTIFIED BASED ON INITIAL NOE-DERIVED STRUCTURES CALCULATED WITHOUT INCLUSION OF THE METAL ION. THREE N- TERMINAL RESIDUES (GLY-SER-HIS) REMAINING FROM CLEAVAGE OF THE HIS-TAG WERE DISORDERED AND NOT INCLUDED IN THE FINAL ENSEMBLE.	X-PLOR 3.851, ARIA

NMR Ensemble Information
Conformer Selection Criteria	structures with acceptable covalent geometry
Conformers Calculated Total Number	60
Conformers Submitted Total Number	20
Representative Model	1 (n/a)

Additional NMR Experimental Information
Details	THIS STRUCTURE WAS DETERMINED USING TRIPLE- RESONANCE NMR SPECTROSCOPY.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR 3.851, ARIA	1999	BRUNGER (X-PLOR), NILGES (ARIA)
2	structure solution	VNMR	6
3	structure solution	Felix	95.0

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 R01GM157729.