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Article

Biochemical properties of two protein kinases involved in disease resistance signaling in tomato.

The Journal of biological chemistry - 19 Jun 1998

Sessa G, D'Ascenzo M, Loh Y T, Martin G B

Abstract excerpt

In tomato plants, resistance to bacterial speck disease is mediated by a phosphorylation cascade, which is triggered by the specific recognition between the plant serine/threonine protein kinase Pto and the bacterial AvrPto protein. In the present study, we investigated in vitro biochemical properties of Pto, which appears to function as an intracellular receptor for the AvrPto signal molecule. Pto and its...

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Source

Identifiers

PMID: 9624187
DOI: 10.1074/jbc.273.25.15860

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

Related research

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Biochemical properties of two protein kinases involved in disease resistance signaling in tomato.PMID 9624187Read ↗

The tomato gene Pti1 encodes a serine/threonine kinase that is phosphorylated by Pto and is involved in the hypersensitive response.Semantic proximity Read ↗

The major site of the pti1 kinase phosphorylated by the pto kinase is located in the activation domain and is required for pto-pti1 physical interaction.Semantic proximity Read ↗

Molecular mechanisms involved in bacterial speck disease resistance of tomatoSemantic proximity Read ↗

Pto evolved from malectin-like RLKs phosphorylates AvrPtoB to promote Prf-mediated immunity in Solanum pimpinellifoliumSemantic proximity Read ↗

A patch of surface-exposed residues mediates negative regulation of immune signaling by tomato Pto kinase.Semantic proximity Read ↗

Alleles of Pto and Fen occur in bacterial speck-susceptible and fenthion-insensitive tomato cultivars and encode active protein kinases.Semantic proximity Read ↗

Adi3 is a Pdk1-interacting AGC kinase that negatively regulates plant cell death.Semantic proximity Read ↗

Pto mutants differentially activate Prf-dependent, avrPto-independent resistance and gene-for-gene resistance.Semantic proximity Read ↗

Functional analyses of the Pto resistance gene family in tomato and the identification of a minor resistance determinant in a susceptible haplotype.Semantic proximity Read ↗

Crystal structure of the complex between Pseudomonas effector AvrPtoB and the tomato Pto kinase reveals both a shared and a unique interface compared with AvrPto-Pto.Semantic proximity Read ↗

Genetic and molecular requirements for function of the Pto/Prf effector recognition complex in tomato and Nicotiana benthamiana.Semantic proximity Read ↗

Constitutively active Pto induces a Prf-dependent hypersensitive response in the absence of avrPto.Semantic proximity Read ↗

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