ArticleNucleic acids research1997
Chloroplast endoribonuclease p54 involved in RNA 3'-end processing is regulated by phosphorylation and redox state.
Article in Nucleic acids research, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 57 citations in OpenAlex.
- A Nucleus-Encoded Chloroplast Phosphoprotein Governs Expression of the Photosystem I Subunit PsaC in Chlamydomonas reinhardtii.The Plant cell · 2016Article
- Plastid casein kinase 2 knockout reduces abscisic acid (ABA) sensitivity, thermotolerance, and expression of ABA- and heat-stress-responsive nuclear genes.Journal of experimental botany · 2014Article
- Sigma factor phosphorylation in the photosynthetic control of photosystem stoichiometry.Proceedings of the National Academy of Sciences of the United States of America · 2010Article
- Dark-induced mRNA instability involves RNase E/G-type endoribonuclease cleavage at the AU-box and SD sequences in cyanobacteria.Molecular genetics and genomics : MGG · 2007Article
- Chloroplast RNA-binding proteins.Current genetics · 2003Review
- Differential regulation of glucose-6-phosphate dehydrogenase isoenzyme activities in potato.Plant physiology · 2003Article
- PNPase activity determines the efficiency of mRNA 3'-end processing, the degradation of tRNA and the extent of polyadenylation in chloroplasts.The EMBO journal · 2002Article
- Endonucleolytic activation directs dark-induced chloroplast mRNA degradation.Nucleic acids research · 2002Article
- Chloroplast transcription at different light intensities. Glutathione-mediated phosphorylation of the major RNA polymerase involved in redox-regulated organellar gene expression.Plant physiology · 2001Article
- The sequence and secondary structure of the 3'-UTR affect 3'-end maturation, RNA accumulation, and translation in tobacco chloroplasts.Plant molecular biology · 2000Article
- Antisense suppression of 2-cysteine peroxiredoxin in Arabidopsis specifically enhances the activities and expression of enzymes associated with ascorbate metabolism but not glutathione metabolism.Plant physiology · 2000Article
- The redox state regulates RNA degradation in the chloroplast of Chlamydomonas reinhardtii.Plant physiology · 1999Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chloroplast RNA-binding protein p54 is an endoribonuclease required for 3'end-processing of plastid precursor transcripts. We find that purified p54 can serve as a phosphate acceptor for protein kinases in vitro. Both the processing and RNA-binding activities of p54 are enhanced by phosphorylation and decreased by dephosphorylation. In addition, the enzyme is activated by the oxidized form of glutathione and inhibited by the reduced form, whereas other redox reagents that were tested showed no effect. Kinase treatment of p54 prior to oxidation by glutathione resulted in highest levels of activation, suggesting that phosphorylation and redox state act together to control p54 activity in vitro and possibly also in vivo.
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