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Solid State NMR structure of the Pf1 Major Coat Protein in Magnetically Aligned Bacteriophage
SOLID-STATE NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
PISEMA
50 MG/ML PF1 MAJOR COAT PROTEIN, U-15N, 5 MM SODIUM BORATE BUFFER
8
AMBIENT
303
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AVANCE
750
NMR Refinement
Method
Details
Software
CONSTRUCTION OF BACTERIOPHAGE MODEL BASED ON THE SOLID STATE NMR STRUCTURE OF THE MAJOR COAT PROTEIN MONOMER
SIDECHAINS WERE ADDED TO THE SOLID STATE NMR BACKBONE STRUCTURE USING THE PROGRAM SCWRL. A BACTERIOPHAGE MODEL WAS CONSTRUCTED BY APPLYING PUBLISHED X- RAY FIBER AND NEUTRON DIFFRACTION SYMMETRY AND DISTANCE CONSTRAINTS (INITIAL PHAGE), WHICH WAS FURTHER REFINED BY COMPARING THE REPULSIVE AMBER ENERGY (USING SCWRL) OF MANY CONFIGURATIONS IN WHICH THE MONOMERS HAD BEEN SYMMETRICALLY ROTATED AND TRANSLATED WITH RESPECT TO THE INITIAL PHAGE.
MATLAB SCRIPTS 6.5, SCWRL
NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number
116
Conformers Submitted Total Number
27
Representative Model
(nearest structure to the average of the 60 best ramachandran structures (based on a statistical ramachandran potential) out of 1000 total structures.)
Additional NMR Experimental Information
Details
MODEL 1 IS THE BASIC SOLID-STATE NMR STRUCTURE (NO SIDECHAINS), WHILE MODELS 2-27 ARE IDENTICAL TRANSLATED AND ROTATED COPIES OF MODEL 1 (WITH SIDECHAINS ADDED AND ENERGY MINIMIZED) INCLUDED TO PRESENT THE MODEL OF THE WHOLE BACTERIOPHAGE ASSEMBLY.