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.
Alignment of nucleotide sequences of attPf237, attBf237, attRS1, and E. coli dif. (A) attPf237; (B) attBf237 with flanking sequences (the sequence of attBf237 is boxed); (C) attRS1 with a flanking sequence (the sequence of attRS1 is boxed); (D) the dif sequence of E. coli. (C) The published sequence of V. cholerae N16961 (4) is the complement of the sequence. Base 1564104 corresponds to the end of the right arm of dif.
