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Structure of MERFT, a membrane protein with two trans-membrane helices
SOLID-STATE NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
PISEMA
6 mM MerFt aligned in large 14-O-PC/6-O-PC phospholipid bicelles, 28% (w/v) in H2O
H2O
5
ambient
313
2
SAMMY
6 mM MerFt aligned in large 14-O-PC/6-O-PC phospholipid bicelles, 28% (w/v) in H2O
H2O
5
ambient
313
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AVANCE
700
NMR Refinement
Method
Details
Software
DIRECT STRUCTURAL FITTING OF 2D SOLID-STATE NMR DATA
This structure was calculated by using a structural fitting algorithm that finds torsion angles between consecutive residues based on their 15N chemical shift, 1H-15N dipolar coupling frequencies and Ramachandran maps. One hydrophobic matching and one loose helix-helix distance restraints were used
NMRPipe
NMR Ensemble Information
Conformer Selection Criteria
structures with the least restraint violations
Conformers Calculated Total Number
20
Conformers Submitted Total Number
1
Additional NMR Experimental Information
Details
15N chemical shifts and 1H-15N dipolar couplings were measured by solid-state NMR