Bacillus phage phi29
| Bacillus phage phi29 | |
|---|---|
| Virus classification | |
| Group: | Group I (dsDNA) |
| Order: | Caudovirales |
| Family: | Podoviridae |
| Genus: | Bpp-1-like virus |
| Species: | Bacillus phage phi29 |
Bacillus phage phi29 (Φ29 phage) belongs to a family of related Bacteriophages which includes, in addition to Φ29, phages PZA, Φ15, BS32, B103, M2Y (M2), Nf and GA-1.[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. Most of these phages infect Bacillus subtilis, but often they also infect other related species such as Bacillus amyloliquefaciens, Bacillus pumilus, and Bacillus licheniformis. Phages of this genus have been sub-classified into three groups based on serological properties, DNA physical maps, peptide maps and partial or complete DNA sequences . The first group includes phages Φ29, PZA, Φ15 and BS32, and the second group includes B103, Nf and M2Y. The most distantly related phage of this family, GA-1, is unable to infect the standard B. subtilis strain 168 and has been placed in a third group. Sequence-analysis of the 16S-rRNA of the host strain of GA-1, G1R, showed that it is most closely related to B. pumilus.