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THE SOLUTION STRUCTURE OF A WELL-FOLDED PEPTIDE BASED ON THE 31-RESIDUE AMINO-TERMINAL SUBDOMAIN OF HUMAN GRANULIN A
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
2D NOESY
0.5 mM HGA 1-31 (D1V, K3H, S9I, Q20P); 20 mM sodium acetate-d3
10% D2O, 90% H2O
5.0
ambient
288
2
2D NOESY
0.5 mM HGA 1-31 (D1V, K3H, S9I, Q20P); 20 mM sodium acetate-d3
10% D2O, 90% H2O
5.0
ambient
298
3
2D NOESY
0.5 mM HGA 1-31 (D1V, K3H, S9I, Q20P); 20 mM sodium acetate-d3
100% D2O
5.0
ambient
288
4
2D NOESY
0.5 mM HGA 1-31 (D1V, K3H, S9I, Q20P); 20 mM sodium acetate-d3
100% D2O
5.0
ambient
298
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AVANCE
500
2
Bruker
DRX
500
NMR Refinement
Method
Details
Software
distance geometry and simulated annealing
The structures are based on a total of 241 restraints, 174 are unambiguous NOE-derived distance constraints, 47 ambiguous NOE-derived distance constraints, 8 dihedral angle restraints, 10 distance restraints from hydrogen bonds, 2 distance restraints from disulfide bonds.
X-PLOR
NMR Ensemble Information
Conformer Selection Criteria
structures with the least restraint violations
Conformers Calculated Total Number
200
Conformers Submitted Total Number
10
Additional NMR Experimental Information
Details
This structure was determined using standard 2D homonuclear techniques