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NMR structure family of Human Agouti Signalling Protein (80-132: Q115Y, S124Y)
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
2D TOCSY
1 mM ASIP(80-132: Q115Y, S124Y)
100 mM d3-acetic acid/d3-sodium acetate, 90% H2O 10% D2O
100 mM d3-acetic acid/sodium acetate
5.0
ambient
288
2
2D NOESY
1 mM ASIP(80-132: Q115Y, S124Y)
100 mM d3-acetic acid/d3-sodium acetate, 90% H2O 10% D2O
100 mM d3-acetic acid/sodium acetate
5.0
ambient
288
3
DQF-COSY
1 mM ASIP(80-132: Q115Y, S124Y)
100 mM d3-acetic acid/d3-sodium acetate, 90% H2O 10% D2O
100 mM d3-acetic acid/sodium acetate
5.0
ambient
288
4
2D TOCSY
1 mM ASIP(80-132: Q115Y, S124Y)
100 mM d3-acetic acid/d3-sodium acetate, 100% D2O
100 mM d3-acetic acid/sodium acetate
4.0
ambient
288
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
UNITYPLUS
800
2
Varian
UNITYPLUS
800
NMR Refinement
Method
Details
Software
simulated annealing / torsion angle dynamics
This structure family represents one of two major conformers present in solution. The two conformers arise from the cis-trans proline isomerization of the Ala104-Pro105 peptide bond.
CYANA
NMR Ensemble Information
Conformer Selection Criteria
target function
Conformers Calculated Total Number
1000
Conformers Submitted Total Number
21
Representative Model
1 (minimized average structure)
Additional NMR Experimental Information
Details
This structure was determined using standard 2D homonuclear techniques, in conjunction with a semi-automated assignment protocol.