2N91

A key amino acid in the control of different functional behavior within the triheme cytochrome family from Geobacter sulfurreducens

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	0.4 mM [U-100% 15N] L6F polypeptide, 3 mM PROTOPORPHYRIN IX CONTAINING FE, 45 mM sodium phosphate, 0.04 % sodium azide	93% H2O/7% D2O	45	7.1	ambient	298
2	2D 1H-1H TOCSY	1 mM L6F polypeptide, 3 mM PROTOPORPHYRIN IX CONTAINING FE, 45 mM sodium phosphate, 0.04 % sodium azide	93% H2O/7% D2O	100	7.1	ambient	298
3	2D 1H-1H COSY	1 mM L6F polypeptide, 3 mM PROTOPORPHYRIN IX CONTAINING FE, 45 mM sodium phosphate, 0.04 % sodium azide	93% H2O/7% D2O	100	7.1	ambient	298
4	2D 1H-1H NOESY	1 mM L6F polypeptide, 3 mM PROTOPORPHYRIN IX CONTAINING FE, 45 mM sodium phosphate, 0.04 % sodium azide	93% H2O/7% D2O	100	7.1	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	800

NMR Refinement
Method	Details	Software
simulated annealing		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	TopSpin		Bruker Biospin
2	collection	TopSpin		Bruker Biospin
3	chemical shift assignment	Sparky		Goddard
4	chemical shift calculation	PARADYANA		Turner, D. L. Brennan, L. Chamberlin, S. G. Louro, R. O. Xavier, A. V.
5	refinement	PARADYANA		Turner, D. L. Brennan, L. Chamberlin, S. G. Louro, R. O. Xavier, A. V.
6	superimposition	MOLMOL		Koradi, Billeter and Wuthrich
7	visual inspection	MOLMOL		Koradi, Billeter and Wuthrich
8	validation	CING		Nabuurs, Spronk, Krieger, Maassen, Vriend and Vuister

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 R01GM133198.