1EHX

NMR SOLUTION STRUCTURE OF THE LAST UNKNOWN MODULE OF THE CELLULOSOMAL SCAFFOLDIN PROTEIN CIPC OF CLOSTRIDUM CELLULOLYTICUM

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	25 mM X2 uniform labelling 15N; 20 mM acetate buffer Na; 90% H2O, 10% D2O			5.0	ambient	300
2	3D_15N-separated_NOESY	25 mM X2 uniform labelling 15N; 20 mM acetate buffer Na; 90% H2O, 10% D2O			5.0	ambient	300
3	DQF-COSY	25 mM X2 uniform labelling 15N; 20 mM acetate buffer Na; 90% H2O, 10% D2O			5.0	ambient	300
4	2D_15N_HSQC	25 mM X2 uniform labelling 15N; 20 mM acetate buffer Na; 90% H2O, 10% D2O			5.0	ambient	300
5	2D_15N_HSQC_NOESY	25 mM X2 uniform labelling 15N; 20 mM acetate buffer Na; 90% H2O, 10% D2O			5.0	ambient	300
6	2D_15N_HSQC_TOCSY	25 mM X2 uniform labelling 15N; 20 mM acetate buffer Na; 90% H2O, 10% D2O			5.0	ambient	300

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing and torsion angle dynamics	the structures are based on a total of 1828 restraints, 1647 are NOE-derived distance constraints, 66 dihedral angle restraints, 105 distance restraints from hydrogen bonds	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	back calculated data agree with experimental NOESY spectrum, structures with acceptable covalent geometry, structures with favorable non-bond energy, structures with the least restraint violations, structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	XwinNMR	2.1
2	data analysis	XEASY	1.2
3	structure solution	DIANA	2.8
4	refinement	CNS	1.0