Bacillus virus phi29
Bacillus virus phi29 is a species of virus that belongs to the bacteriophage order Caudovirales which also includes phages PZA, Φ15, BS32, B103, M2Y, Nf, and GA-1. These phages, which form part of the Podoviridae family, are the smallest Bacillus phages isolated to date and are among the smallest known dsDNA phages.