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POLY-A TAIL [1 record]

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Record 1 2012-04-13

English

Subject field(s)
  • Genetics
DEF

The terminal stretch of A residues found at the 3' end of most eucaryotic mRNAs.

OBS

In some cases, the presence of poly(A) seems to affect the stability of the mRNA.

French

Domaine(s)
  • Génétique
DEF

Séquence poly A terminant une des extrémités de certains ARNm eucaryotes et de l'ARN génomique de phages.

Spanish

Campo(s) temático(s)
  • Genética
CONT

El extremo 3’ del RNA recién sintetizado también debe ser protegido para evitar su degradación prematura. En este caso la protección se consigue mediante la adición de una larga serie de nucleótidos de adenina a la que se conoce como cola de poli A.

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