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SOLUTION STRUCTURE OF A TOXIN FROM THE SCORPION TITYUS SERRULATUS (TSTX-K ALPHA) DETERMINED BY NMR.
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 4.53 mM TsTx-Ka
2.2 mM d11-Tris
0.1 mM EDTA
0.35 mM NaN3 90% H2O/10% D2O 1.44 3.50 1 atm 310 2 DQF-COSY 4.53 mM TsTx-Ka
2.2 mM d11-Tris
0.1 mM EDTA
0.35 mM NaN3 90% H2O/10% D2O 1.44 3.50 1 atm 310 3 TOCSY 4.53 mM TsTx-Ka
2.2 mM d11-Tris
0.1 mM EDTA
0.35 mM NaN3 90% H2O/10% D2O 1.44 3.50 1 atm 310 4 ROESY 4.53 mM TsTx-Ka
2.2 mM d11-Tris
0.1 mM EDTA
0.35 mM NaN3 90% H2O/10% D2O 1.44 3.50 1 atm 310 5 E-COSY 4.53 mM TsTx-Ka
2.2 mM d11-Tris
0.1 mM EDTA
0.35 mM NaN3 100% D2O 1.44 3.50 1 atm 310 6 TOCSY 4.53 mM TsTx-Ka
2.2 mM d11-Tris
0.1 mM EDTA
0.35 mM NaN3 90% H2O/10% D2O 1.44 3.50 1 atm 305 7 TOCSY 4.53 mM TsTx-Ka
2.2 mM d11-Tris
0.1 mM EDTA
0.35 mM NaN3 90% H2O/10% D2O 1.44 3.50 1 atm 300 8 TOCSY 4.53 mM TsTx-Ka
2.2 mM d11-Tris
0.1 mM EDTA
0.35 mM NaN3 90% H2O/10% D2O 1.44 3.50 1 atm 295 9 TOCSY 4.53 mM TsTx-Ka
2.2 mM d11-Tris
0.1 mM EDTA
0.35 mM NaN3 90% H2O/10% D2O 1.44 3.50 1 atm 290 10 2D NOESY 4.53 mM TsTx-Ka
2.2 mM d11-Tris
0.1 mM EDTA
0.35 mM NaN3 90% H2O/10% D2O 1.44 3.50 1 atm 290
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DMX 600
NMR Refinement Method Details Software distance geometry
simulated annealing These structures are based on a total of 569 NOE distance contraints, 13 dihedral angle restraints, and 16 phi angle restraints. X-PLOR
NMR Ensemble Information Conformer Selection Criteria structures with acceptable covalent geometry,structures with the least restraint violations,structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 30 Representative Model 25 (closest to the average)
Additional NMR Experimental Information Details This structure was determined using standard 2D homonuclear techniques.
Computation: NMR Software # Classification Version Software Name Author 1 refinement X-PLOR 3.851 Brunger 2 structure solution X-PLOR 3.851 Brunger 3 collection XwinNMR 4 processing NMRPipe 1.7 Delagilio 5 processing Felix