Abstract
The plant receptor kinase BAK1/SERK3 has been identified as a partner of ligand-binding leucine-rich repeat receptor kinases, in particular the brassinosteroid receptor BRI1 and the immune receptor FLS2. BAK1 positively regulates BRI1 receptor function via physical interaction and transphosphorylation. Since its first description in 2001, several independent groups have discovered BAK1/SERK3 as a component of diverse processes, including brassinosteroid signaling, light responses, cell death, and plant innate immunity. Here, we summarize current knowledge of the functional repertoire of BAK1 and discuss how its multiple functions could be integrated, how receptor complexes are potentially formed and how specificity might be determined.
MeSH terms
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Arabidopsis Proteins / genetics
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Arabidopsis Proteins / metabolism
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Arabidopsis Proteins / physiology
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Gene Expression Regulation, Plant / genetics
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Gene Expression Regulation, Plant / physiology
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Models, Biological
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Phosphorylation
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Plant Proteins / genetics
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Plant Proteins / metabolism
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Plant Proteins / physiology*
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Protein Binding
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Protein Kinases / genetics
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Protein Kinases / metabolism
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Protein Kinases / physiology
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Protein Serine-Threonine Kinases / genetics
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Protein Serine-Threonine Kinases / metabolism
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Protein Serine-Threonine Kinases / physiology*
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Signal Transduction / physiology
Substances
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Arabidopsis Proteins
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Plant Proteins
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Protein Kinases
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BAK1 protein, Arabidopsis
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BRI1 protein, Arabidopsis
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Protein Serine-Threonine Kinases