ArticleThe Plant cell2004
Chloroplast elongation factor ts pro-protein is an evolutionarily conserved fusion with the s1 domain-containing plastid-specific ribosomal protein-7.
Article in The Plant cell, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 30 citations in OpenAlex.
- Chloroplast-Localized Protein, OsAL7, with Two Elongation Factor Thermostable Domains Is Essential for Normal Chloroplast Development and Seedling Longevity inPlants (Basel, Switzerland) · 2025Article
- Structural and mechanistic basis for the regulation of the chloroplast signal recognition particle by (p)ppGpp.FEBS letters · 2025Article
- Plastid-Localized EMB2726 Is Involved in Chloroplast Biogenesis and Early Embryo Development inFrontiers in plant science · 2021Article
- The translational apparatus of plastids and its role in plant development.Molecular plant · 2014Review
- Production of unique immunotoxin cancer therapeutics in algal chloroplasts.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
- ppGpp inhibits peptide elongation cycle of chloroplast translation system in vitro.Plant molecular biology · 2012Article
- Proteomic analysis of a sea-ice diatom: salinity acclimation provides new insight into the dimethylsulfoniopropionate production pathway.Plant physiology · 2011Article
- Molecular factors affecting the accumulation of recombinant proteins in the Chlamydomonas reinhardtii chloroplast.Molecular biotechnology · 2011Article
- Transcriptional regulation of ribosome components are determined by stress according to cellular compartments in Arabidopsis thaliana.PloS one · 2011Article
- Megadalton complexes in the chloroplast stroma of Arabidopsis thaliana characterized by size exclusion chromatography, mass spectrometry, and hierarchical clustering.Molecular & cellular proteomics : MCP · 2010Article
- Genome-wide analysis of alternative splicing in Chlamydomonas reinhardtii.BMC genomics · 2010Article
- Arabidopsis thaliana mutants reveal a role for CSP41a and CSP41b, two ribosome-associated endonucleases, in chloroplast ribosomal RNA metabolism.Plant molecular biology · 2008Article
- Article
- Mutations in a plastid-localized elongation factor G alter early stages of plastid development in Arabidopsis thaliana.BMC plant biology · 2007Article
- EST assembly supported by a draft genome sequence: an analysis of the Chlamydomonas reinhardtii transcriptome.Nucleic acids research · 2007Article
- Functional differentiation of bundle sheath and mesophyll maize chloroplasts determined by comparative proteomics.The Plant cell · 2005Article
- Chloroplast translation regulation.Photosynthesis researchReview
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
The components of chloroplast translation are similar to those of prokaryotic translation but contain some additional unique features. Proteomic analysis of the Chlamydomonas reinhardtii chloroplast ribosome identified an S1-like protein, plastid-specific ribosomal protein-7 (PSRP-7), as a stoichiometric component of the 30S subunit. Here, we report that PSRP-7 is part of a polyprotein that contains PSRP-7 on its amino end and two translation elongation factor Ts (EF-Ts) domains at the carboxy end. We named this polyprotein PETs (for polyprotein of EF-Ts). Pets is a single-copy gene containing the only chloroplast PSRP-7 and EF-Ts sequences found in the C. reinhardtii genome. The pets precursor transcript undergoes alternative splicing to generate three mRNAs with open reading frames (ORFs) of 1.68, 1.8, and 3 kb. A 110-kD pro-protein is translated from the 3-kb ORF, and the majority of this protein is likely posttranslationally processed into the 65-kD protein PSRP-7 and a 55-kD EF-Ts. PETs homologs are found in Arabidopsis thaliana and rice (Oryza sativa). The conservation of the 110-kD PETs polyprotein in the plant kingdom suggests that PSRP-7 and EF-Ts function together in some aspects of chloroplast translation and that the PETs pro-protein may have a novel function as a whole.
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