#phage_major_coat_protein
Phage major coat protein
In molecular biology, a phage major coat protein is an alpha-helical protein that forms a viral envelope of filamentous bacteriophages. These bacteriophages are flexible rods, about one to two micrometres long and six nm in diameter, with a helical shell of protein subunits surrounding a DNA core. The approximately 50-residue subunit of the major coat protein is largely alpha-helix, and the axis of the alpha-helix makes a small angle with the axis of the virion. The protein shell can be considered in three sections: the outer surface, occupied by the N-terminal region of the subunit and rich in acidic residues that give the virion a low isoelectric point; the interior of the shell where protein subunits interact, mainly with each other; and the inner surface, rich in positively charged residues that interact with the DNA core.
Wed 29th
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