stop codon

[/stɑp ˈkoʊdɑn/]
nounpl: stop codons
códon de parada
1. A sequence of three nucleotides (DNA or RNA) that signals the termination of protein synthesis during translation
The ribosome recognizes the stop codon and releases the completed polypeptide chain.
O ribossomo reconhece o códon de parada e libera a cadeia polipeptídica completa.
2. One of three termination codons: UAA, UAG, or UGA in RNA (or TAA, TAG, TGA in DNA)
The three stop codons are also known as nonsense codons or termination codons.
Os três códons de parada também são conhecidos como códons sem sentido ou códons de terminação.
This is a technical term primarily used in molecular biology, genetics, and biochemistry fields. It is understood uniformly across English-speaking and Portuguese-speaking scientific communities with minimal regional variation. The term is essential in genetics education and research in both Brazil and the United States.
Synonyms / Sinônimos
termination codonnonsense codonamber codonochre codonopal codon
Antonyms / Antônimos
start codoninitiation codon

Regional Variations

General Brazilian
códon de parada
Standard term used in molecular biology textbooks and research
São Paulo
códon de parada / códon stop
Both terms used interchangeably in academic settings
Portugal
codão de terminação
Alternative term more commonly used in European Portuguese scientific literature

Related Words

codontranslationribosomeprotein synthesismRNAtRNAgenetic codeopen reading frame

Related Idioms & Phrases

reach the stop codon
hit the stop codon
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