What does start codon mean?

Definitions for start codon

Here are all the possible meanings and translations of the word start codon.


  1. start codon(Noun)

    The codon at which translation of mRNA into protein starts, encoding the first amino acid.

  2. Origin: start (indicating first, initial) + codon


  1. Start codon

    The Central dogma of molecular biology describes the process of translation of a gene to a protein. Specific sequences of DNA act as a template to synthesize mRNA. The start codon is the first codon of a messenger RNA transcript translated by a ribosome. The start codon always codes for methionine in eukaryotes and a modified Met in prokaryotes. The most common start codon is AUG. The start codon is almost always preceded by an untranslated region 5' UTR. In prokaryotes this includes the ribosome binding site. Alternate start codons are very rare in eukaryotic genomes. Mitochondrial genomes and prokaryotes use alternate start codons more significantly. For example E. coli uses 83% ATG, 14% GTG, 3% TTG and one or two others. Bioinformatics programs usually allow for alternate start codons when searching for protein coding genes. Note that these alternate start codons are still translated as Met when they are at the start of a protein. This is because a separate transfer RNA is used for initiation.A


  1. Chaldean Numerology

    The numerical value of start codon in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of start codon in Pythagorean Numerology is: 3

Images & Illustrations of start codon

  1. start codonstart codonstart codon


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"start codon." Definitions.net. STANDS4 LLC, 2018. Web. 17 Mar. 2018. <https://www.definitions.net/definition/start codon>.

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