Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Structure of the replication modules of three lactococcal bacteriophages. ORFs are indicated as block arrows. Grey rectangles indicate DNA regions with >90% sequence identity. Thin arrows above the nucleotide sequence indicate direct repeats.
