ArticleThe Plant journal : for cell and molecular biology2008
Proteolytic processing of a precursor protein for a growth-promoting peptide by a subtilisin serine protease in Arabidopsis.
Article in The Plant journal : for cell and molecular biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.
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Who cites it
86 citing papers in PubMed, 166 citations in OpenAlex.
- Processing and release of the maize phytocytokine Zip1.Plant physiology · 2026Article
- Diverse phytocytokines derived from conserved subtilase scaffolds co-evolved with clustered receptors to confer defence responses in legumes.Nature plants · 2026Article
- A Phytosulfokine signaling module activates the Nod factor receptor to control soybean nodulation.Nature communications · 2026Article
- Plant Peptides on the Rise: From Historical Insight to Future Applications.Plant biotechnology journal · 2026Review
- Processing and release of endogenous immunogenic peptide signals.The Plant journal : for cell and molecular biology · 2026Review
- Plant subtilases as key initiators of peptide ligand-receptor signaling.The Plant journal : for cell and molecular biology · 2026Review
- Characterization of phytosulfokine peptide family in cotton and its role in cold stress response.Functional & integrative genomics · 2026Article
- An omnigenic interactome model to chart the genetic architecture of individual plants.Horticulture research · 2026Article
- The impact of CsPSKs on plant immunity: insights from a genome-wide study of small peptides in Citrus sinensis.Functional & integrative genomics · 2026Article
- Four guidelines to identify bona fide protease-substrate pairs.Journal of experimental botany · 2025Review
- Physiological and transcriptomic analyses revealed the alleviating effects of exogenous CaBMC genomics · 2025Article
- Peptide hormones in plants.Molecular horticulture · 2025Review
- Tobacco (Frontiers in plant science · 2025Article
- Genome-wide identification of PSKR genes in wheat and differential expression under abiotic stress conditions.Frontiers in plant science · 2025Article
- Phytosulfokine downregulates defense-related WRKY transcription factors and attenuates pathogen-associated molecular pattern-triggered immunity.The Plant journal : for cell and molecular biology · 2024Article
- Genome-Wide Characterization and Expression Profiling of Phytosulfokine Receptor Genes (Genes · 2024Article
- Characterization of the Serine Protease TlSP1 fromJournal of fungi (Basel, Switzerland) · 2024Article
- Pull the fuzes: Processing protein precursors to generate apoplastic danger signals for triggering plant immunity.Plant communications · 2024Review
- Sulfated peptides: key players in plant development, growth, and stress responses.Frontiers in plant science · 2024Review
- Phytosulfokine contributes to suspension culture of Cunninghamia lanceolata through its impact on redox homeostasis.BMC plant biology · 2023Article
26 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Phytosulfokines (PSKs) are secreted, sulfated peptide hormones derived from larger prepropeptide precursors. Proteolytic processing of one of the precursors, AtPSK4, was demonstrated by cleavage of a preproAtPSK4-myc transgene product to AtPSK4-myc. Cleavage of proAtPSK4 was induced by placing root explants in tissue culture. The processing of proAtPSK4 was dependent on AtSBT1.1, a subtilisin-like serine protease, encoded by one of 56 subtilase genes in Arabidopsis. The gene encoding AtSBT1.1 was up-regulated following the transfer of root explants to tissue culture, suggesting that activation of the proteolytic machinery that cleaves proAtPSK4 is dependent on AtSBT1.1 expression. We also demonstrated that a fluorogenic peptide representing the putative subtilase recognition site in proAtPSK4 is cleaved in vitro by affinity-purified AtSBT1.1. An alanine scan through the recognition site peptide indicated that AtSBT1.1 is fairly specific for the AtPSK4 precursor. Thus, this peptide growth factor, which promotes callus formation in culture, is proteolytically cleaved from its precursor by a specific plant subtilase encoded by a gene that is up-regulated during the process of transferring root explants to tissue culture.
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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.