ArticleThe Plant cell2006
Arabidopsis GLUTAMINE-RICH PROTEIN23 is essential for early embryogenesis and encodes a novel nuclear PPR motif protein that interacts with RNA polymerase II subunit III.
Article in The Plant cell, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.
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Who cites it
79 citing papers in PubMed, 155 citations in OpenAlex.
- Maternal epigenetic regulation of embryonic patterning in plants.Nature plants · 2026Article
- Genetic Basis Analysis for Candidate QTLs and Functional Genes Controlling Four-Seeded Pods at Lower-Node in Soybean (Plants (Basel, Switzerland) · 2026Article
- Article
- Pentatricopeptide repeat proteins in plants: Cellular functions, action mechanisms, and potential applications.Plant communications · 2025Review
- MpMLO1 controls sperm discharge in liverwort.Nature plants · 2024Article
- The dicot homolog of maize PPR103 carries a C-terminal DYW domain and may have a role in C-to-U editing of some chloroplast RNA transcripts.Plant molecular biology · 2024Article
- Chloroplast C-to-U editing, regulated by a PPR protein BoYgl-2, is important for chlorophyll biosynthesis in cabbage.Horticulture research · 2024Article
- Molecular-level architecture of Chlamydomonas reinhardtii's glycoprotein-rich cell wall.Nature communications · 2024Article
- Association analysis of agronomic traits and construction of genetic networks by resequencing of 306 sugar beet (Beta vulgaris L.) lines.Scientific reports · 2023Article
- GRP23 plays a core role in E-type editosomes via interacting with MORFs and atypical PPR-DYWs inProceedings of the National Academy of Sciences of the United States of America · 2022Article
- Maize PPR278 Functions in Mitochondrial RNA Splicing and Editing.International journal of molecular sciences · 2022Article
- DECUSSATE network with flowering genes explains the variable effects of qDTY12.1 to rice yield under drought across genetic backgrounds.The plant genome · 2022Article
- A MaizeGenes · 2022Article
- Functions of PPR Proteins in Plant Growth and Development.International journal of molecular sciences · 2021Review
- PPR647 Protein Is Required for Chloroplast RNA Editing, Splicing and Chloroplast Development in Maize.International journal of molecular sciences · 2021Article
- The Arabidopsis mediator complex subunit 8 regulates oxidative stress responses.The Plant cell · 2021Article
- Plant egg cell fate determination depends on its exact position in female gametophyte.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- The Glycine-Rich Domain Protein GRDP2 Regulates Ovule Development via the Auxin Pathway inFrontiers in plant science · 2021Article
- Roles of Reactive Oxygen Species and Mitochondria in Seed Germination.Frontiers in plant science · 2021Review
- Emerging Roles of RNA-Binding Proteins in Seed Development and Performance.International journal of molecular sciences · 2020Review
19 more citing papers are in PubMed but not listed here.
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Precise control of gene expression is critical for embryo development in both animals and plants. We report that Arabidopsis thaliana GLUTAMINE-RICH PROTEIN23 (GRP23) is a pentatricopeptide repeat (PPR) protein that functions as a potential regulator of gene expression during early embryogenesis in Arabidopsis. Loss-of-function mutations of GRP23 caused the arrest of early embryo development. The vast majority of the mutant embryos arrested before the 16-cell dermatogen stage, and none of the grp23 embryos reached the heart stage. In addition, 19% of the mutant embryos displayed aberrant cell division patterns. GRP23 encodes a polypeptide with a Leu zipper domain, nine PPRs at the N terminus, and a Gln-rich C-terminal domain with an unusual WQQ repeat. GRP23 is a nuclear protein that physically interacts with RNA polymerase II subunit III in both yeast and plant cells. GRP23 is expressed in developing embryos up to the heart stage, as revealed by beta-glucuronidase reporter gene expression and RNA in situ hybridization. Together, our data suggest that GRP23, by interaction with RNA polymerase II, likely functions as a transcriptional regulator essential for early embryogenesis in Arabidopsis.
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