ArticleMolecular & general genetics : MGG1993
An Arabidopsis gene homologous to mammalian and insect genes encoding the largest proteasome subunit.
Article in Molecular & general genetics : MGG, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 25 citations in OpenAlex.
- Characterizing the stress/defense transcriptome of Arabidopsis.Genome biology · 2003Article
- Plant proteolytic enzymes: possible roles during programmed cell death.Plant molecular biology · 2000Review
- Multiubiquitin chain binding subunit MCB1 (RPN10) of the 26S proteasome is essential for developmental progression in Physcomitrella patens.The Plant cell · 1999Article
- Expression of a proteasome alpha-type subunit gene during tobacco development and senescence.Plant molecular biology · 1999Article
- Article
- Cloning of two plant cDNAs encoding a beta-type proteasome subunit and a transformer-2-like SR-related protein: early induction of the corresponding genes in tobacco cells treated with cryptogein.Plant molecular biology · 1997Article
- Characterization of 26S proteasome alpha- and beta-type and ATPase subunits from spinach and their expression during early stages of seedling development.Plant molecular biology · 1997Article
- Proteolysis in plants: mechanisms and functions.Plant molecular biology · 1996Review
- Analysis of flavanone 3-hydroxylase in Arabidopsis seedlings. Coordinate regulation with chalcone synthase and chalcone isomerase.Plant physiology · 1996Article
- Regulation of Protein Degradation.The Plant cell · 1995Article
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Authors and funding
2 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
A gene encoding a protein with extensive homology to the largest subunit of the multicatalytic proteinase complex (proteasome) has been identified in Arabidopsis thaliana. This gene, referred to as AtPSM30, is entirely encompassed within a previously characterized radiation-induced deletion, which may thus provide the first example of a proteasome null mutation in a higher eukaryote. However, the growth rate and fertility of Arabidopsis plants do not appear to be significantly affected by this mutation, even though disruption experiments in yeast have shown that most proteasome subunits are essential. Analysis of mRNA levels in developing seedlings and mature plants indicates that expression of AtPSM30 is differentially regulated during development and is slightly induced in response to stress, as has been observed for proteasome genes in yeast, Drosophila, and mammals. Southern blot analysis indicates that the Arabidopsis genome contains numerous sequences closely related to AtPSM30, consistent with recent reports of at least two other proteasome genes in Arabidopsis. A comparison of the deduced amino acid sequences for all proteasome genes reported to date suggests that multiple proteasome subunits evolved in eukaryotes prior to the divergence of plants and animals.
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