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Table 1 Proteins engaged in m6A metabolism in plants

From: In search of the mRNA modification landscape in plants

Abbreviation

Full name

Plant Species

Functions

Cellular localization

Phenotype of the mutant with decrease expression

MTA

mRNA adenosine methylase

Arabidopsis (Arabidopsis thaliana)

form m6A methylation complex

nucleus

• mta, mtb, fip37 and vir are embryo-lethal

mature mta, mtb, fip37 and vir plants show alerted vascular development, gravitropic response, roots growth and flowering timing

• mta mutants are characterized by small, bushy rosettes and alerted flower and trichome architecture

• hakai-1 and hakai-2 mutants resembled wild type plants [23,24,25,26,27],

MTB

FIP37

FKB12 Interacting Protein 37 kD

VIR

VIRILIZER

HAKAI

ECT1–13

FKB12 Interacting Protein 37 kD

Arabidopsis (Arabidopsis thaliana)

confirmed or putative m6A binding proteins engaged in downstream responses including regulation of mRNA lifetime

Various YTH-domain proteins were detected in cytoplasm and nucleus or ubiquitously in cells, depending on the plant species and specific protein

• ect2 mutant showed increased trichome branching

double ect2/ect3 mutants show increased trichome branching and delayed leave formation accompanied by changes in leaves shape [28,29,30,31,32,33,34]

MhYTP1–15

YTH-domain protein

Chinese crab apple (Malus hupehensis)

OsYTH1–12

YTH-domain protein

Rice (Oryza sativa)

CsYTH1–5

YTH-domain protein

Cucumber (Cucumis sativus)

ALKB10B

Alpha-ketoglutarate-dependent dioxygenase 10B

Arabidopsis (Arabidopsis thaliana)

mediates m6A demethylation

not examined

hampered growth and delayed flowering [21]