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.
Graphs showing the relationship between the effective number of codons (ENC) and the GC content of the third codon position (GC3). The curve indicates the expected codon usage if GC compositional constraints alone account for codon usage bias.
