MPPE1 and infection: Of the proteins we detected, 12 are expressed in the early-phase arm including metallophosphoesterase (gene 52) and 11 genes with unknown function (gene 47, gene 51, gene 56, gene 65/66, gene 53, gene 86, gene 52, gene 42, gene 41, gene 44, gene 49), while 8 are expressed late during infection and involved in virion structure and assembly (gene 12, portal; gene 15, major capsid protein; gene 22, major tail subunit; gene 14, scaffolding; and gene 24, tail assembly chaperone) or have unknown function (gene 3/4, gene 17, gene 16).