Table 2 Summary of XA21-binding proteins
Interacting protein | Gene Locus | Gene product | Subcelluar localization | Role | Function | Reference |
|---|---|---|---|---|---|---|
XB3 | LOC_Os05g02130 | RING finger-containing E3 ubiquitin ligase | Not determined | + | Maintains the stability of XA21 | (Wang et al. 2006) |
XB10 | LOC_Os09g25070 | Transcription factor | Partially localize to the nucleus | – | Suppresses the activation of defense-related genes | (Peng et al. 2008) |
XB15 | LOC_Os03g60650 | Protein phosphatase 2C | Plasma membrane | – | Dephosphorylates XA21 and attenuates XA21-mediated immune responses | (Park et al. 2008) |
XB21 | LOC_Os12g36180 | Auxilin-like protein | Not determined | + | May function as clathrin uncoating factor to mediate XA21 endocytosis | (Park et al. 2017) |
XB24 | LOC_Os01g56470 | ATPase | Not determined | – | Promotes XA21 autophosphorylation and keep it in a biologically inactive state | (Chen et al. 2010b) |
XB25 | LOC_Os09g33810 | Plant-specific ankyrin-repeat (PANK) protein | Plasma membrane | + | Maintains the stability of XA21 | |
BiP3 | LOC_Os02g02410 | Heat shock protein (HSP) 70 | Endoplasmic reticulum | – | Serves as a XA21 chaperone and regulates XA21 processing | (Park et al. 2010b) |
SDF2 | LOC_Os08g17680 | Stromal-derived factor 2 | Endoplasmic reticulum | + | Serves as a XA21 chaperone and regulates XA21 processing | (Park et al. 2013) |
LOC_Os08g34190 | Not determined | |||||
OsSERK2 | LOC_Os04g38480 | Rice somatic embryogenesis receptor kinase 2 | Plasma membrane | + | Forms a constitutive complex with XA21 and phosphorylate one another | (Chen et al. 2014) |