Convert DNA sequences to complementary DNA, mRNA, tRNA anticodons, and amino acid chains. See codon-by-codon breakdown with GC content and base composition.
Last updated: March 2, 2026
Convert DNA sequences to complementary DNA, mRNA, tRNA anticodons, and amino acid chains. See codon-by-codon breakdown with GC content and base composition. This tool runs in-browser for fast results without account set…
Yes. This converter is completely free with no signup required. It runs entirely in your browser — your sequences are never uploaded.
The sense (coding) strand has the same sequence as mRNA (with T instead of U). The antisense (template) strand is the one actually read by RNA polymerase during transcription.
A codon is a sequence of 3 mRNA bases that codes for one amino acid. There are 64 possible codons coding for 20 amino acids plus 3 stop signals.
GC content is the percentage of guanine (G) and cytosine (C) bases in a DNA sequence. Higher GC content means higher thermal stability due to the triple hydrogen bond between G-C pairs.
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DNA → complementary DNA → mRNA → tRNA anticodons → amino acids
Paste a sequence — non-ATCGU characters are ignored
Example sequences
Transcription: The DNA sense strand has the same sequence as mRNA (with T→U). The antisense (template) strand is read 3'→5' by RNA polymerase to produce mRNA 5'→3'.
Translation: Ribosomes read mRNA codons (3 bases each) and match them with tRNA anticodons carrying the corresponding amino acids. AUG is the start codon (methionine), while UAA, UAG, and UGA are stop codons.
GC content indicates thermal stability — higher GC content means higher melting temperature due to the triple hydrogen bond between G and C (vs. double bond for A-T).