← Literature list

Divergent Roles of CPK28 in Immune Homeostasis Across Land Plants.

Dou R, Castel B, Tanney CAS, Miguel VN, Bredow M, Melkonian K, Gallo MCR, Keller J, Gonçalves-Dias M, Mahboubi KE, Chu J, DeFalco TA, Zipfel C, Uhrig RG, Delaux PM, Monaghan J. · 2026 · Mol Plant Microbe Interact   research

doi:10.1094/MPMI-02-26-0020-SC   PMID:42373094

Linked genes (3)  3 core 0 peripheral

Gene ID Name Evidence / Role Function (this paper)
— MpCPK28 missing experimental subject Calcium-dependent protein kinase that phosphorylates the subgroup IV U-box protein MpPUB20e. Unlike angiosperm CPK28 mutants, Mpcpk28 alleles show no enhanced immune ROS burst or pathogen resistance, yet MpCPK28 restores function in Arabidopsis cpk28-1, indicating latent functional conservation. ID NOTE: the paper states no v7.1 locus and the symbol is not registered in MarpolBase.
— MpPUB20e missing experimental subject Subgroup IV plant U-box protein, a substrate of MpCPK28 that can ubiquitinate MpPBLa. Unlike AtPUB25/26 Thr95/94, phosphorylation of the equivalent residue Thr122 had no detectable functional role. ID NOTE: the paper states no v7.1 locus and the symbol is not registered in MarpolBase.
Mp3g25360 MpRLK-Pelle_RLCK-VIIa-2 experimental subject Receptor-like cytoplasmic kinase and functional ortholog of Arabidopsis BIK1 (registered as MpRLK-Pelle_RLCK-VIIa-2). It undergoes proteasomal degradation and is ubiquitinated by MpPUB20e, but CPK28-mediated fine-tuning of this PUB-BIK1 module appears to be a vascular-plant refinement.