RNA-Binding Proteins in Plant Immunity

Table 1

Summary of RBPs in plant immunity.

RNA binding-Protein	Conserved RNA-binding motif	Other properties	Possible functions	Plant origin	References
PRP-BP		Binds U-rich region	PvPRP1 mRNA binding protein, may function in the elicitor-induced destabilization of PvPRP7 mRNA	Bean	[8]
tcI14	SR-rich repeat region RNP1 and RNP2		Alternative splicing	Tobacco	[9]
GaPR10		K-A-X-E-X-Y-L domainand a P-loop	Ribonuclease activity	Cotton	[10]
GRP7	RRM, glycine-rich motif RNP-binding domain		mRNA stability and control,pathogen defence	Arabidopsis	[11, 22]
eIF4E		Eukaryotic initiation factor 4E homolog domain	Components of 5′ cap binding complex (CBC), response to virus, translational initiation	Arabidopsis	[12, 23, 24]
MOS2	G-patch and KOW motif		RNA binding	Arabidopsis	[13, 25, 26]
MOS11		Homologus to human RNA binding protein CIP29	mRNA export	Arabidopsis	[3, 27]
DCL2	Double-stranded RNAbinding motif, Double stranded RNA binding domain	Helicase superfamily c-terminal domain, RIBOc. Ribonuclease III C terminal domain, PAZ domain	Defense response to virus, maintenance of DNA methylation, producing of ta-siRNAs involved in RNA interference	Arabidopsis	[4, 5, 28]
DCL4	Double-stranded RNA binding motif, Double stranded RNAbinding domain	Helicase superfamily c-terminal domain, RIBOc. Ribonuclease III C terminal domain, PAZ domain	RNA processing, defense response to virus, maintenance of DNA methylation, production of lsiRNA, siRNA and ta-siRNAs involved in RNAinterference,virus induced gene silencing	Arabidopsis	[4, 5, 28]
AGO1	PIWI domain, PAZ domain	DUF1785 domain, PLN03202 domain, Glycine-rich region of argonaut	RNA interference,gene silencing by miRNA, innate immune response, leaf morphogenesis, virus induced gene silencing	Arabidopsis	[5, 6, 29–34]
AGO2	PIWI domain, PAZ domain	DUF1785 domain, PLN03202 domain	siRNA binding, defense response to virus, RISC compoments	Arabidopsis	[5, 6, 29–32, 35]
AGO7	PIWI domain, PAZ domain	DUF1785 domain, PLN03202 domain	Nucleic binding, RISC components, gene silencing by miRNA, production of lsiRNA and ta-siRNAs involved in RNA interference	Arabidopsis	[5, 6, 29–32]
MAC5A/5B	CCCH-type zinc-finger domain, RNA recognition motif		Component of MAC, associated with spliceosome, defense response to bacterium	Arabidopsis	[2, 36]
AtRBP-DR1	Three RNA recognition motifs		Positive regulation of salicylic acid mediated signaling pathway	Arabidopsis	[14, 37]