ArticlePlant molecular biology1999
Expression of a proteasome alpha-type subunit gene during tobacco development and senescence.
Article in Plant molecular biology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed, 36 citations in OpenAlex.
- Article
- Characterization of natural leaf senescence in tobacco (Nicotiana tabacum) plants grown in vitro.Protoplasma · 2016Article
- Immunofluorescent localization of ubiquitin and proteasomes in nucleolar vacuoles of soybean root meristematic cells.European journal of histochemistry : EJH · 2012Article
- Potato skin proteome is enriched with plant defence components.Journal of experimental botany · 2008Article
- The Oryza sativa no pollen (Osnop) gene plays a role in male gametophyte development and most likely encodes a C2-GRAM domain-containing protein.Plant molecular biology · 2005Article
- Gene expression in autumn leaves.Plant physiology · 2003Article
- Ripening-related occurrence of phosphoenolpyruvate carboxykinase in tomato fruit.Plant molecular biology · 2001Article
- Programmed cell death in plant reproduction.Plant molecular biology · 2000Review
- Plant proteolytic enzymes: possible roles during programmed cell death.Plant molecular biology · 2000Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Proteasomes degrade specific proteins that have been targeted for proteolysis by ubiquitination. In animals and yeast nuclear-localised proteasomes play a role in regulating the cell cycle, and other developmental processes, via control of the levels of regulatory nuclear proteins such as cyclins and transcription factors. A cDNA, NtPSA1, isolated from tobacco styles was found to have high similarity to human and yeast genes, PRCI_human and PRCI_yeast with 63.4% and 51.6% overall identity respectively. These genes are believed to encode non-catalytic alpha-type subunits of 26S proteasomes and like NtPSA1 have putative nuclear localisation signals. NtPSA1 RNA was found to accumulate to varying levels in different parts of the plant and at different developmental stages. In particular, the level of NtPSA1 RNA was high in young dividing and expanding tissues, and declined during the senescence of both leaves and flowers. These results suggest that a role of proteasomes in plant nuclei may be to regulate developmental events by controlling the levels of regulatory proteins in proliferating and developing tissues, rather than to degrade and recycle proteins during senescence.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.