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.
Location of all ACA triplets in tRNA and 5S rRNA sequences of E. coli K-12. (A) Nucleotide sequences (Seq) of any tRNAs containing ACAs are shown (for a total of 10 unique ACA-containing tRNAs), with the predicted single-strand and double-strand (Str) regions indicated by dots and arrowheads, respectively. ACA triplets are underlined, and the methylation site of 
is marked with an arrow. (B) The nucleotide sequence of the 5S rRNA gene, rrfF, is similarly shown.
