1ZN5

Solid State NMR Structure of the low-temperature form of the Pf1 Major Coat Protein in Magnetically Aligned Bacteriophage


SOLID-STATE NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
1PISEMAApproximately 50 mg/ml Pf1 bacteriophage, u-15N5 mM sodium borate buffer8ambient273
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerAvance750
NMR Refinement
MethodDetailsSoftware
Determination of torsion angles between adjacent residues using solid-state NMR frequenciesThis is a backbone only model. Constant peptide plane geometry was assumed. Torsion angles phi and psi were allowed to vary within 10-20 degrees relative to phi=-65, psi=-40. Radial and angular positioning of subunits in a manner similar to and in comparison with structure 1PJF, which involved minimization against published neutron diffraction distance constraints and energy minimization with sidechains using the program SCWRL.NMRPipe
NMR Ensemble Information
Conformer Selection Criteriastructural fitting of PISEMA spectrum with fixed peptide plane geometry
Conformers Calculated Total Number100
Conformers Submitted Total Number27
Representative Model1 (closest to the average)
Additional NMR Experimental Information
DetailsMODEL 1 IS THE BASIC SOLID-STATE NMR STRUCTURE (NO SIDECHAINS), WHILE MODELS 2-27 ARE IDENTICAL TRANSLATED AND ROTATED COPIES OF MODEL 1 INCLUDED TO PRESENT THE MODEL OF THE WHOLE BACTERIOPHAGE ASSEMBLY.
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1data analysisNMRPipe2.2
2data analysisFELIX2000.1
3structure solutionMatlab scripts1.0Nevzorov A.A., Opella, S.J.
4refinementSCWRLBower et al.