Figure 1.

Genomic organization of virulent wild-type S. thermophilus phage 2972. Arrows represent orfs. Color shows transcription profile based on (48). Light gray indicates early gene expression (0–7 min post-infection), middle gray indicates middle gene expression (7–22 min post-infection), dark gray indicates late gene expression (12–27 min post-infection). Orfs without assigned function have bold outlines and are bold numbered. The relative locations of the protospacers targeted in this study are indicated by «PS» number.