1YBJ | pdb_00001ybj

Structural and Dynamics studies of both apo and holo forms of the hemophore HasA

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	HNHA	1.8mM HasA 15N	20mM sodium phosphate buffer, pH5.6; 90% H2O/10% D20	20mM sodium phosphate buffer	5.6	ambient	303
2	3D_15N-separated_NOESY	1.9mM HasA 15N,13C	20mM sodium phosphate buffer, pH5.6; 90% H2O/10% D20	20mM sodium phosphate buffer	5.6	ambient	303
3	3D_13C-separated_NOESY	1.9mM HasA 15N,13C	20mM sodium phosphate buffer, pH5.6; 90% H2O/10% D20	20mM sodium phosphate buffer	5.6	ambient	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	750
2	Varian	INOVA	500

NMR Refinement
Method	Details	Software
simulated annealing	Structures are based on a total of 3537 distance restraints (where 3145 were unambiguous and 392 ambiguous),111 phi torsion angles and 34 hydrogen bonds.	VNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	20
Conformers Submitted Total Number	10
Representative Model	10 (lowest energy)

Additional NMR Experimental Information
Details	H-bond constraints according to the amide proton-deuterium exchange measurements (15N HSQC experiments)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR	6.1c
2	processing	NMRPipe		F. Delaglio, S. Grzesiek, G. W. Vuister, G. Zhu, J. Pfeifer and A. Bax
3	data analysis	XEASY	1.3.13	Bartels, C., Xia, T.H., Billeter, M., Guntert, P., Wuthrich, K.
4	structure solution	ARIA/CNS	2.0alpha	Linge, J., Nilges, M., Habeck, M., Rieping, W.
5	refinement	ARIA/CNS	2.0alpha	Linge, J., Nilges, M., Habeck, M., Rieping, W.