1P9D

High-resolution structure of the complex of HHR23A ubiquitin-like domain and the C-terminal ubiquitin-interacting motif of proteasome subunit S5a

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	2mM S5a peptide unlabeled, 2mM ubiquitin-like domain of HHR23A U-15N,13C	50mM sodium phosphate, 100mM sodium chloride, 5% D2O	150mM	6.5	ambient	300
2	15N-,13C-filtered/edited 2D-NOESY	2mM S5a peptide unlabeled, 2mM ubiquitin-like domain of HHR23A U-15N,13C	50mM sodium phosphate, 100mM sodium chloride, 5% D2O	150mM	6.5	ambient	300
3	15N-,13C-filtered/edited 2D-NOESY	2mM S5a peptide U-15N,13C, 2mM ubiquitin-like domain of HHR23A unlabeled	50mM sodium phosphate, 100mM sodium chloride, 5% D2O	150mM	6.5	ambient	300

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500
2	Bruker	DRX	600

NMR Refinement
Method	Details	Software
simulated annealing	The structures are based on a total of 2066 restraints, 1999 are NOE-derived distance restraints, of which 58 are intermolecular. For the S5a ubiquitin-interacting motif only the residues 270 to 301 were included in the structure calculations due to disorder of the flexible N- and C-termini.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	30
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	The structure was determined using triple-resonance NMR spectroscopy

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	XwinNMR	2.5	Bruker Karlsruhe
2	data analysis	AURELIA	2.8.9	Neidig
3	structure solution	X-PLOR	3.1	Brunger
4	refinement	X-PLOR	3.1	Brunger