Abstract
A novel virulent phage PE3-1 against E. coli O153 was isolated from an aeration tank in a wastewater treatment plant. Transmission electron microscopy images showed that phage PE3-1 had an icosahedral head and a short tail, which revealed that it was a member of the family Podoviridae of the order Caudovirales. The complete PE3-1 genome consisted of 39,093 bp and was a linear double-stranded DNA with an average GC content of 49.93%. Phage PE3-1 showed homology to the T7-like phages in 48 open reading frames (ORFs), but it differed from previously reported E .coli phages in morphology and bioinformatics analysis. This indicated that phage PE3-1 is a new member of the genus T7 virus.
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