2H3O

Structure of MERFT, a membrane protein with two trans-membrane helices


SOLID-STATE NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
1PISEMA6 mM MerFt aligned in large 14-O-PC/6-O-PC phospholipid bicelles, 28% (w/v) in H2OH2O5ambient313
2SAMMY6 mM MerFt aligned in large 14-O-PC/6-O-PC phospholipid bicelles, 28% (w/v) in H2OH2O5ambient313
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerAvance700
NMR Refinement
MethodDetailsSoftware
DIRECT STRUCTURAL FITTING OF 2D SOLID-STATE NMR DATAThis 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 usedNMRPipe
NMR Ensemble Information
Conformer Selection Criteriastructures with the least restraint violations
Conformers Calculated Total Number20
Conformers Submitted Total Number1
Additional NMR Experimental Information
Details15N chemical shifts and 1H-15N dipolar couplings were measured by solid-state NMR
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1data analysisNMRPipe2.3Delaglio, F et al.
2data analysisSPARKY3.11Goddard, T.D. et al.
3refinementSTRUCTURAL FITTING2.0Nevzorov, A.A and Opella, S.J.