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.
A section of the large ribosomal subunit (PDB ID 1JJ2) is shown, with a single nucleotide colored orange. This nucleotide forms a separate nucleotide doublet with each of the five residues colored blue. In the set of structures we use here, the average nucleotide is part of five doublets. There are some nucleotides that are part of just one doublet and a very small number of nucleotides that are part of 12 different doublets.
