1M94

Solution Structure of the Yeast Ubiquitin-Like Modifier Protein Hub1

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	1-3 mM Hub1, U-15N, 13C, NaOAc, pH 5.0	90% H2O, 10% D20	10 mM NaOAc, 300 mM NaCl	5.0	ambient	298
2	HNHA	1-3 mM Hub1, U-15N, 13C, NaOAc, pH 5.0	90% H2O, 10% D20	10 mM NaOAc, 300 mM NaCl	5.0	ambient	298
3	3D_13C-separated_NOESY	1-3 mM Hub1, U-15N, 13C, NaOAc, pH 5.0	90% H2O, 10% D20	10 mM NaOAc, 300 mM NaCl	5.0	ambient	298
4	4D_13C/15N-separated_NOESY	1-3 mM Hub1, U-15N, 13C, NaOAc, pH* 4.6	99% H2O, 1% D20	10 mM NaOAc, 300 mM NaCl	5.0	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	800
2	Varian	INOVA	750
3	Varian	INOVA	600

NMR Refinement
Method	Details	Software
distance geometry and simulated annealing	THE STRUCTURES ARE BASED ON A TOTAL OF 869 RESTRAINTS. SUMMARY OF EXPERIMENTAL CONSTRAINTS: DISTANCE CONSTRAINTS: TOTAL = 783; INTRA-RESIDUE [I=J] = 4; SEQUENTIAL [(I-J)=1] = 229; MEDIUM RANGE [1<(I-J)<5] = 159; LONG RANGE [(I-J)>=5] = 333; HYDROGEN BOND CONSTRAINTS = 58 (2 PER H-BOND); NUMBER OF DISTANCE CONSTRAINTS PER RESIDUE = 10.7; DIHEDRAL-ANGLE CONSTRAINTS = 86 (50 PHI, 36 PSI); TOTAL NUMBER OF CONSTRAINTS PER RESIDUE = 11.9; NUMBER OF LONG RANGE CONSTRAINTS PER RESIDUE = 4.6; NUMBER OF STRUCTURES COMPUTED = 20; NUMBER OF STRUCTURES USED = 20. AVERAGE DISTANCE VIOLATIONS >0 ANG = 22.9; AVERAGE R.M.S. DISTANCE VIOLATION = 0.006 ANG; MAXIMUM NUMBER OF DISTANCE VIOLATIONS 28. AVERAGE DIHEDRAL ANGLE VIOLATIONS: >0 DEG = 4.6; MAX NUMBER OF ANGLE VIOLATION = 7 DEG; AVERAGE R.M.S. ANGLE VIOLATION = 0.14 DEG. RMSD VALUES: BACKBONE ATOMS (N,C,C',O) = 0.61 ANG; ALL HEAVY ATOMS = 1.17 ANG; PROCHECK: MOST FAVORED REGIONS = 92%; ADDITIONAL ALLOWED REGIONS = 4%; GENEROUSLY ALLOWED REGIONS = 2%; DISALLOWED REGIONS = 2%.	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	all calculated structures submitted
Conformers Calculated Total Number	20
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	1H-13C HSQC on 10% C13, U-15N sample for stereospecific assignments of Leu and Val

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR	3.84	Brunger, A.T.
2	processing	Felix	98	MSI
3	collection	VNMR	6.1C	Varian
4	data analysis	Sparky	3.98	Goddard, Kneller
5	refinement	X-PLOR	3.84	Brunger, A.T.