mRNA to Protein Translator

Translate an mRNA sequence (A, U, G, C) to its amino acid chain using the standard genetic code. Detects AUG start and UAA/UAG/UGA stops.

mRNA Sequence Input

Spaces and newlines are ignored. Enter only A, U, G, C.

Quick samples

Enter an mRNA sequence and click Translate

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Summary

Translate an mRNA sequence (A, U, G, C) to its amino acid chain using the standard genetic code. Detects AUG start and UAA/UAG/UGA stops.

How it works

  1. Paste or type your mRNA sequence (A, U, G, C — spaces and line breaks are stripped automatically).
  2. Click Translate to scan from the first AUG start codon and read subsequent triplet codons.
  3. Each codon is matched against the standard genetic code to produce an amino acid.
  4. Translation stops at the first UAA, UAG, or UGA codon (labelled STOP, not converted).
  5. Results show single-letter codes, three-letter abbreviations, and full amino acid names.

Use cases

  • Verify a predicted protein sequence from a cloned cDNA.
  • Check open reading frames (ORFs) in a transcribed mRNA sequence.
  • Teach or learn the standard genetic code and codon table.
  • Validate the output of a PCR-derived or synthesized mRNA fragment.
  • Compare codon usage across reading frames using the force-full-translation toggle.

Frequently Asked Questions

Last updated: 2026-06-18 · Reviewed by Nham Vu