MPPE1 and infection: Other highly expressed genes (Reads Per Kilobase per Million mapped reads (RPKM) > 5,000) at 15 minutes after infection included a metallophosphoesterase (gene 52), a DnaB-like helicase (gene 63), a RecB-like helicase (gene 67), a phosphoribosyl transferase (gene 62), and a ribonucleotide reductase (gene 50).