Observed arrival · 2026-09-27
A codon chart with 27 genetic-code options
An interactive reference for looking up codons, switching between RNA and DNA, and exporting printable charts.
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ƒJS
- For
- Students and researchers working with genetic sequences
- Worth noticing
- Its sequence note distinguishes replacing RNA’s U with DNA’s T from complementing a strand, a useful clarification.
Field notes
The code selector includes organism-specific alternatives such as vertebrate mitochondrial, yeast mitochondrial, and bacterial, archaeal, and plant plastid codes. The reference explains base orientation, start-codon context, and the difference between changing RNA letters to DNA letters and complementing a strand. Its export controls are described as following the selected code and alphabet.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue