Definitions for start codon

This page provides all possible meanings and translations of the word start codon

Wiktionary

  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

Freebase

  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

Translation

Find a translation for the start codon definition in other languages:

Select another language:

Discuss these start codon definitions with the community:


Citation

Use the citation below to add this definition to your bibliography:

Style:MLAChicagoAPA

"start codon." Definitions.net. STANDS4 LLC, 2014. Web. 21 Dec. 2014. <http://www.definitions.net/definition/start codon>.

Are we missing a good definition for start codon?


The Web's Largest Resource for

Definitions & Translations


A Member Of The STANDS4 Network


Nearby & related entries:

Alternative searches for start codon: