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.
Open arrows indicate ORFs and the directions of their transcripts. The probe synthesized by PCR using catB-N and catB-I primers was used for colony hybridization. The primers used for RT-PCR and primer extension analyses are indicated by horizontal arrows. The downward solid triangle indicates a transcriptional start site of cat gene cluster. A, ApaI; C, ClaI; E, EcoNI; N, NcoI; S, SacI.
