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The Satellite Phage P4

by Gianni Dehò and Daniela Ghisotti

Dipartimento di Genetica e di Biologia dei Microrganismi
Universita degli Studi di Milano
Via Celoria 26, 20133 Milan, Italy

The Bacteriophages, 2nd edition (2006)
Richard Calendar -- Oxford University Press

Figure 26-1: Structure and morphogenesis of satellite bacteriophage P4 and its helper P2 virions.  (tif)
Figure 26-2: P4 life cycle.  (tif)
Figure 26-3: Physical and genetic map of P4 (panel A) and P4 immunity region (panel B).  (tif)
Figure 26-4: The essential elements for P4 replication...  (tif)
Figure 26-4A: ...Functional domains of the P4 a protein.  (tif)
Figure 26-4B: ...Replicon oriI and oriII.  (tif)
Figure 26-4C: ...The minimal ori1 sequence and the two direct repeats of crr (pdf file).
Figure 26-5: A model for P4 replication.  (tif)
Figure 26-6: Predicted secondary structure of the CI RNA and possible interactions in the leader transcript of the immunity region...  (tif)
Figure 26-6A: ...Computer predicted structure of the CI RNA.  (tif)
Figure 26-6B: ...Predicted secondary structures of the PLE-t1 transcript.  (tif)
Figure 26-6C: ...Possible interactions between the CI RNA and the SeqA and SeqC targets in the leader region.  (tif)
Figure 26-7: Regulatory loops controlling expression of P4 and P2 late genes.  (tif)
Table 26-1: Bacteriophage P4 genes and functions (pdf file).
Bibliography: References cited by chapter (pdf file).
Presented by www.phage.org and Stephen T. Abedon