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.
The secondary structure of E. coli tmRNA. The TLD (red), PK1 (green), ORF (light blue), helix 5, PK2 (purple), PK3 (orange), and PK4 (blue) regions are indicated. The TLD contains a D loop, a conserved TψC loop, and a G/U pair in the acceptor stem, the latter of which is recognized by alanyl-tRNA synthetase.
