Is transcription of higher plant chloroplast ribosomal operons regulated by premature termination?

FEBS Letters

Briat, Jean François²  Dron, Michel¹  Mache, Régis² 

[1] Université de Paris XI, Centre d'Orsay, Laboratoire de Biologie Moléculaire Végétale, Bât. 430, F-91405 Orsay, France;Université I de Grenoble, Laboratoire de Physiologie Cellulaire Végétale, CNRS ERA 488, BP 68, F-38402 Saint Martin d`Hères, Cédex France

关键词: Higher plant;    Chloroplast;    rDNA;    Transcription;    Stem-loop;    Attenuation;   

DOI  :  10.1016/0014-5793(83)81149-1

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Three stem-loop structures (H1, H2, H3) can be formed in the leader transcript of the chloroplast rDNA of spinach, tobacco and maize. H2 and H3 partially overlap and cannot exist simultaneously. These potential hairpins lead us to postulate that higher plant chloroplast rDNA is regulated by premature termination. This mechanism could be controlled by the presence or absence of a ribosome translating an hypothetical leader peptide encoded in the rDNA leader sequence of these 3 higher plants.

【 授权许可】

Unknown