Analysis of the 5' and 3'UTRs in the post-transcriptional regulation of the interleukin-5 gene.
Biochim Biophys Acta
; 1444(1): 61-8, 1999 Jan 18.
Article
en En
| MEDLINE
| ID: mdl-9931437
Post-transcriptional regulation is emerging as an important control point in cytokine gene expression. However, the role that it plays in IL-5 gene expression is unclear with some conflicting reports. Here we investigate the importance of post-transcriptional regulation and the role of the 5' and 3' untranslated regions (UTRs) in mIL-5 gene expression. To do this, IL-5 expression from a panel of cDNA constructs was compared. We found it essential to remove the 5' synthetic oligonucleotide tails, introduced during the cloning of the mIL-5 cDNA, when studying IL-5 expression. The presence of these oligo(G) tails acted as potent inhibitors of translation of both SV40 and SP6 transcripts. Furthermore, the length of the tails was found to be critical to the translational efficiency. Taking this into account, we found no evidence to suggest that IL-5 is regulated at the level of mRNA stability or translation efficiency by either the 5' or 3'UTR. These results suggest that post-transcriptional control is not a major factor regulating IL-5 expression.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Interleucina-5
/
Regiones no Traducidas 3'
/
Regiones no Traducidas 5'
Límite:
Animals
Idioma:
En
Revista:
Biochim Biophys Acta
Año:
1999
Tipo del documento:
Article
País de afiliación:
Australia
Pais de publicación:
Países Bajos