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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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A membrane-anchored protein kinase involved in Brassica self-incompatibility signaling.

Self-incompatibility (SI) response in Brassica is initiated by haplotype-specific interactions between the pollen-borne ligand S locus protein 11/SCR and its stigmatic S receptor kinase, SRK. This binding induces autophosphorylation of SRK, which is then thought to trigger a signaling cascade that leads to self-pollen rejection. A recessive mutation of the modifier (m) gene eliminates the SI response in stigma. Positional cloning of M has revealed that it encodes a membrane-anchored cytoplasmic serine/threonine protein kinase, designated M locus protein kinase (MLPK). Transient expression of MLPK restores the ability of mm papilla cells to reject self-pollen, suggesting that MLPK is a positive mediator of Brassica SI signaling.[1]

References

  1. A membrane-anchored protein kinase involved in Brassica self-incompatibility signaling. Murase, K., Shiba, H., Iwano, M., Che, F.S., Watanabe, M., Isogai, A., Takayama, S. Science (2004) [Pubmed]
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