The Sites of Transcription and Translation for Euglena Chloroplastic Aminoacyl-tRNA Synthetases
AUTOR(ES)
Hecker, L. I.
RESUMO
We find that cycloheximide completely blocks the light-induced apearance of Euglena chloroplastic aminoacyl-tRNA synthetases in dark-grown cells of Euglena gracilis var. bacillaris. Streptomycin, on the other hand, has no effect on the light-induction of these organellar enzymes. These observations, together with the finding that an aplastidic mutant (strain W3BUL, which has neither significant plastid structure nor detectable chloroplast DNA) contains low levels of the chloroplastic synthetases, indicate that the chloroplastic synthetases are transcriptional products of nuclear genes and are translated on cytoplasmic ribosomes prior to compartmentalization within the chloroplasts.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=388352Documentos Relacionados
- Aminoacyl-tRNA synthetases database
- Aminoacyl-tRNA synthetases database Y2K
- Competition of aminoacyl-tRNA synthetases for tRNA ensures the accuracy of aminoacylation
- Competition of aminoacyl-tRNA synthetases for tRNA ensures the accuracy of aminoacylation.
- Competition of aminoacyl-tRNA synthetases for tRNA ensures the accuracy of aminoacylation