ArticleProceedings of the National Academy of Sciences of the United States of America2000
A second, substrate-dependent site of protein import into chloroplasts.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed, 61 citations in OpenAlex.
- PRAT Proteins Operate in Organellar Protein Import and Export inPlants (Basel, Switzerland) · 2021Article
- Chloroplast: The Emerging Battlefield in Plant-Microbe Interactions.Frontiers in plant science · 2021Review
- A Protochlorophyllide (Pchlide)Frontiers in plant science · 2019Article
- NADPH:protochlorophyllide oxidoreductase B (PORB) action in Arabidopsis thaliana revisited through transgenic expression of engineered barley PORB mutant proteins.Plant molecular biology · 2017Article
- Programmed chloroplast destruction during leaf senescence involves 13-lipoxygenase (13-LOX).Proceedings of the National Academy of Sciences of the United States of America · 2016Article
- Cell growth defect factor 1 is crucial for the plastid import of NADPH:protochlorophyllide oxidoreductase A in Arabidopsis thaliana.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
- Three proteins mediate import of transit sequence-less precursors into the inner envelope of chloroplasts in Arabidopsis thaliana.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
- The rice ASR5 protein: a putative role in the response to aluminum photosynthesis disturbance.Plant signaling & behavior · 2012Article
- Etioplast and etio-chloroplast formation under natural conditions: the dark side of chlorophyll biosynthesis in angiosperms.Photosynthesis research · 2010Review
- A search for factors influencing etioplast-chloroplast transition.Proceedings of the National Academy of Sciences of the United States of America · 2009Article
- Article
- Recent overview of the Mg branch of the tetrapyrrole biosynthesis leading to chlorophylls.Photosynthesis research · 2008Review
- Three thioredoxin targets in the inner envelope membrane of chloroplasts function in protein import and chlorophyll metabolism.Proceedings of the National Academy of Sciences of the United States of America · 2008Article
- A substrate-independent, 14:3:3 protein-mediated plastid import pathway of NADPH:protochlorophyllide oxidoreductase A.Proceedings of the National Academy of Sciences of the United States of America · 2007Article
- Chloroplast envelope membranes: a dynamic interface between plastids and the cytosol.Photosynthesis research · 2007Review
- In vitro-mutagenesis of NADPH:protochlorophyllide oxidoreductase B: two distinctive protochlorophyllide binding sites participate in enzyme catalysis and assembly.Molecular genetics and genomics : MGG · 2006Article
- Recent advances in chlorophyll biosynthesis and breakdown in higher plants.Plant molecular biology · 2004Review
- The outer plastid envelope protein Oep16: role as precursor translocase in import of protochlorophyllide oxidoreductase A.Proceedings of the National Academy of Sciences of the United States of America · 2004Article
- Identification of plastid envelope proteins required for import of protochlorophyllide oxidoreductase A into the chloroplast of barley.Proceedings of the National Academy of Sciences of the United States of America · 2004Article
- Novel Insights into the Enzymology, Regulation and Physiological Functions of Light-dependent Protochlorophyllide Oxidoreductase in Angiosperms.Photosynthesis research · 2004Article
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chloroplasts must import a large number of proteins from the cytosol. It generally is assumed that this import proceeds for all stromal and thylakoid proteins in an identical manner and is caused by the operation of two distinctive protein import machineries in the outer and inner plastid envelope, which form the general import site. Here we show that there is a second site of protein translocation into chloroplasts of barley, tobacco, Arabidopsis thaliana, and five other tested monocotyledonous and dicotyledonous plant species. This import site is specific for the cytosolic precursor of the NADPH:protochlorophyllide (Pchlide) oxidoreductase A, pPORA. It couples Pchlide synthesis to pPORA import and thereby reduces the actual level of free Pchlide, which, because of its photodynamic properties, would be destructive to the plastids. Consequently, photoprotection is conferred onto the plant.
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