SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Sample Contents2.6mM S2 peptide U-15N, 0.063mM rhodopsin as part of intact disk membranes from bovine retina; buffer: 10 mM HEPES, 20mM KCl, 0.05mM DTPA
Solvent90% H2O/10% D2O
Ionic Strength10 mM HEPES, 20 mM KCl
pH6.6
Pressureambient
Temperature (K)283
Experiment(s):2D NOESY, 2D 1H-15N HSQC (w/o 1H decoupling)
Sample Contents2.6mM S2 peptide U-15N, 13C, 0.063mM rhodopsin as part of intact disk membranes from bovine retina; buffer: 10 mM HEPES, 20mM KCl, 0.05mM DTPA
Solvent90% H2O/10% D2O
Ionic Strength10 mM HEPES, 20 mM KCl
pH6.6
Pressureambient
Temperature (K)283
Experiment(s):2D 1H-13C CT-HSQC (w/o 1H decoupling)
Spectrometer Information
Manufacturer Model Field Strength
Bruker DMX 750.0
Bruker DMX 600.0
NMR Refinement
Method simulated annealing, molecular dynamics
Details the structures are based on a total of 121 NOE-derived distance constraints, 12 NOE-derived dihedral angle restraints, and 38 residual dipolar couplings
NMR Ensemble Information
Conformer Selection Criteria structures with the lowest energy
Conformers Calculated Total Number 100
Conformers Submitted Total Number 20
Representative Model Choice Rationale
1 lowest energy structure
Additional NMR Experimental Information
1 sample was studied in dark adapted state and after photo activation of rhodopsin by illuminating the sample for 60s with a focussed microscope light, chemical shifts of S2 peptide are identical in both states, TrNOEs and TrDCs are difference values between the dark and light-activated states. orientation of the bound peptide relative to the membrane normal was determined from residual dipolar couplings. the membrane normal that belongs to model 1 runs parallel to the y-axis of the coordinate frame in which the deposited s2 peptide coordinates are specified.
Computation: NMR Software
# Classification Software Name Author
1 processing version: 2.1 NMRPipe Delaglio
2 structure solution version: NIH X-PLOR A.T. Brunger
3 refinement version: NIH X-PLOR A.T. Brunger, N. Tjandra, C.D. Schwieters, J. Kuszewski, G.M. Clore