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.
Agarose gel electrophoresis stained with ethidium bromide of stx2 fragments obtained by PCR from the STAH strain. (A) stx2 PCR, 346 bp. Lanes: S, STAH lysate; M, 100-bp DNA molecular marker (Promega); C, E. coli O157:H7 EDL933 lysate (stx2/stx1 positive control). (B) stx2 PCR, 215 bp. Lanes: C, E. coli K-12 C600 933W lysate (stx2 positive control); M, 100-bp DNA molecular marker (Gibco); L, STAH lysate; P, phage genome DNA; E, DNA obtained by plasmidic extraction.
