SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Sample Contents0.5-1 mM [U-100% 15N] KCNE1 (MinK), 10 % D2O, 2 mM EDTA, 2 mM DTT, 250 mM imidazole, 4 % LMPG, 90% H2O/10% D2O
Solvent90% H2O/10% D2O
Ionic Strength0.25
pH6.0
Pressureambient
Temperature (K)313
Experiment(s):2D TROSY-1H-15N HSQC
Sample Contents1 mM [U-13C; U-15N; U-2H] KCNE1 (MinK), 10 % D2O, 2 mM EDTA, 2 mM DTT, 250 mM imidazole, 4 % LMPG, 90% H2O/10% D2O
Solvent90% H2O/10% D2O
Ionic Strength0.25
pH6.0
Pressureambient
Temperature (K)313
Experiment(s):3D TROSY-HNCO, 3D TROSY-HNCA, 3D TROSY-HN(CO)CA, 3D TROSY-CBCA(CO)NH, 3D TROSY-HNCACB
Sample Contents1 mM [U-100% 13C; U-100% 15N; 70% 2H] KCNE1 (MinK), 10 % D2O, 2 mM EDTA, 2 mM DTT, 250 mM imidazole, 4 % LMPG, 90% H2O/10% D2O
Solvent90% H2O/10% D2O
Ionic Strength0.25
pH6.0
Pressureambient
Temperature (K)313
Experiment(s):3D 1H-15N TROSY-NOESY
Sample Contents1 mM [U-15N; U-2H] KCNE1 (MinK), 10 % D2O, 2 mM EDTA, 2 mM DTT, 250 mM imidazole, 4 % LMPG, 90% H2O/10% D2O
Solvent90% H2O/10% D2O
Ionic Strength0.25
pH6.0
Pressureambient
Temperature (K)313
Experiment(s):2D TROSY-1H-15N HSQC
Spectrometer Information
Manufacturer Model Field Strength
Bruker Avance 800.0
Varian INOVA 900.0
Bruker Avance 600.0
NMR Refinement
Method DGSA-distance geometry simulated annealing
Details The refinement protocol consisted of slow cooling from 1000 K to 100 K spanning 45 ps. Final structures were energy-minimized using 250 steps of Powell energy minimization. The 20 structures with lowest energy were subjected to further analysis and spin-labeled Cys residues associated with PRE restraints were changed back to their wild type residues. Powell energy minimization was then performed.
NMR Ensemble Information
Conformer Selection Criteria structures with the lowest energy
Conformers Calculated Total Number 500
Conformers Submitted Total Number 10
Representative Model Choice Rationale
1 closest to the average
Additional NMR Experimental Information
1 The structure was determined using combination of NOEs, PREs, and RDCs.
Computation: NMR Software
# Classification Software Name Author
1 collection version: 1.3 TOPSPIN Bruker Biospin
2 processing version: v2.4 NMRPipe Delaglio, F. et al.
3 data analysis version: 5.2.2_01 NMRView Johnson, B.A. et al.
4 data analysis version: 2.1 CYANA Guntert, P. et al.
5 refinement version: 2.17 X-PLOR_NIH Schwieters, C.D. et al.
6 data analysis version: v.3.5.4 ProcheckNMR Laskowski, R.A. et al.