ArticleThe Plant cell2015
HIGH CHLOROPHYLL FLUORESCENCE145 Binds to and Stabilizes the psaA 5' UTR via a Newly Defined Repeat Motif in Embryophyta.
Article in The Plant cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 25 citations in OpenAlex.
- Assembly-dependent translational feedback regulation of photosynthetic proteins in land plants.Nature plants · 2025Article
- Structure, function, and assembly of PSI in thylakoid membranes of vascular plants.The Plant cell · 2024Review
- Article
- The plant cytosolic mPlant communications · 2023Article
- An RNA thermometer in the chloroplast genome of Chlamydomonas facilitates temperature-controlled gene expression.Nucleic acids research · 2023Article
- Chloroplast gene expression: Recent advances and perspectives.Plant communications · 2023Review
- NADP+ supply adjusts the synthesis of photosystem I in Arabidopsis chloroplasts.Plant physiology · 2022Article
- Screening and Identification of Candidate GUN1-Interacting Proteins inInternational journal of molecular sciences · 2021Article
- Review
- Retraction Note: PPP1, a plant-specific regulator of transcription controls Arabidopsis development and PIN expression.Scientific reports · 2021Article
- Cytosolic CTP Production Limits the Establishment of Photosynthesis inFrontiers in plant science · 2021Article
- An RNA Chaperone-Like Protein Plays Critical Roles in Chloroplast mRNA Stability and Translation in Arabidopsis and Maize.The Plant cell · 2019Article
- PUMPKIN, the Sole Plastid UMP Kinase, Associates with Group II Introns and Alters Their Metabolism.Plant physiology · 2019Article
- CHLOROPLAST RIBOSOME ASSOCIATED Supports Translation under Stress and Interacts with the Ribosomal 30S Subunit.Plant physiology · 2018Article
- RNA-stabilization factors in chloroplasts of vascular plants.Essays in biochemistry · 2018Review
- Chlorophyll Fluorescence Video Imaging: A Versatile Tool for Identifying Factors Related to Photosynthesis.Frontiers in plant science · 2018Review
- Auxin transport and conjugation caught together.Journal of experimental botany · 2017Article
- A Nitrogen-Fixing Subunit Essential for Accumulating 4Fe-4S-Containing Photosystem I Core Proteins.Plant physiology · 2016Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The seedling-lethal Arabidopsis thaliana high chlorophyll fluorescence145 (hcf145) mutation leads to reduced stability of the plastid tricistronic psaA-psaB-rps14 mRNA and photosystem I (PSI) deficiency. Here, we genetically mapped the HCF145 gene, which encodes a plant-specific, chloroplast-localized, modular protein containing two homologous domains related to the polyketide cyclase family comprising 37 annotated Arabidopsis proteins of unknown function. Two further highly conserved and previously uncharacterized tandem repeat motifs at the C terminus, herein designated the transcript binding motif repeat (TMR) domains, confer sequence-specific RNA binding capability to HCF145. Homologous TMR motifs are often found as multiple repeats in quite diverse proteins of green and red algae and in the cyanobacterium Microcoleus sp PCC 7113 with unknown function. HCF145 represents the only TMR protein found in vascular plants. Detailed analysis of hcf145 mutants in Arabidopsis and Physcomitrella patens as well as in vivo and in vitro RNA binding assays indicate that HCF145 has been recruited in embryophyta for the stabilization of the psaA-psaB-rps14 mRNA via specific binding to its 5' untranslated region. The polyketide cyclase-related motifs support association of the TMRs to the psaA RNA, presumably pointing to a regulatory role in adjusting PSI levels according to the requirements of the plant cell.
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