Tags: 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.
