Codon Usage Analyzer


The Codon Usage Analyzer is a web-based program written to process information from the Codon Usage Database and display it in an easy-to-read format. The program ranks the different codons that can encode each amino acid in order of decreasing frequency, so it becomes easy to determine which codon an organism most frequently uses to encode a particular amino acid. This is helpful for laboratory techniques like site-directed mutagenesis, in which a researcher might need to select a particular codon from several choices to encode a specific amino acid in a novel mutation.


1. Go to the Codon Usage Database at

2. Search the database for the codon usage table of your organism of interest.

3. Copy and paste the entire codon usage table from the database into the text area below.

Organism:      (optional)

Copyright © 2004 by Carlo Lapid, author of PrimerX.
For comments and suggestions, send email to
PrimerX is kindly hosted at Bioinformatics.Org.
Last updated: Oct. 21, 2004