Start Codon

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 The start codon for any polypeptide chain is always AUG, which codes for Methionine. tRNAMet is bound to AUG and begins polypeptide synthesis. [1]

Many polypeptides, however, have the methionine cleaved off after translation is complete, so AUG codon will not always be present in base sequences. 


References

  1. ↑ Daniel L. Hartl and Maryellen Ruvolo (2012) Genetics: Analysis of genes and genomes. 8th Edition. USA: Jones and Bartlett Learning, p.26
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