SOLID-STATE NMR Experimental Data

Experimental Details
Sample Conditions
Sample Contents1mM M2 U-15N; 350mM DPC; pH5.5;
Solvent90% H2O; 10% D2O;
Ionic Strengthn/a
Temperature (K)303
Experiment(s):HSQC; HNCA; HNCOCA; 3D 15N- and 13C-edited NOESY; 3D 15N- and 13C-edited TOCSY; 3D HNHA
Sample Contents20mg M2 U-15N; 40mg DMPC;
SolventDMPC bilayers in H2O;
Ionic Strengthn/a
Temperature (K)298
Experiment(s):1D CPMOIST; 2D 1H/1H-15N PISEMA; 2D 1H/15N HETCOR;
Spectrometer Information
Manufacturer Model Field Strength
Chemagnetics CMX 400.0
Bruker DMX 600.0
Bruker DMX 750.0
NMR Refinement
Method X-PLOR 3.1, distance geometry, simulated annealing, molecular dynamics, FISI, FINGERPRINT, HOLE
Details The backbone coordinates obtained from solution NMR were superimposed on the coordinates obtained from solid-state NMR to fix the helix orientation and rotation in the membrane. The pentameric array was then optimized using molecular dynamics. Pore contours were calculated with the program HOLE.
NMR Ensemble Information
Conformer Selection Criteria structures with favorable non-bond energy
Conformers Calculated Total Number 30
Conformers Submitted Total Number 1
Representative Model Choice Rationale
1 minimized average structure
Additional NMR Experimental Information
1 The orientation of each monomer in the pentameric bundle was obtained from the combination of the solution NMR (PDB file 1a11) and solid-state NMR (PDB file 1cek) structures
Computation: NMR Software
# Classification Software Name Author
1 data analysis FELIX 95 n/a
2 structure solution HOLE Smart, Goodfellow, Wallace
3 structure solution FISI 1.01 Marassi
4 refinement X-PLOR 3.01 Brunger