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y14A

Gene
Y14A
Protein
RNA-binding protein Y14A
Organism
Oryza sativa subsp. japonica
Length
204 amino acids
Function
Core component of the splicing-dependent multiprotein exon junction complex (EJC) deposited at splice junctions on mRNAs. The EJC is a dynamic structure consisting of core proteins and several peripheral nuclear and cytoplasmic associated factors that join the complex only transiently either during EJC assembly or during subsequent mRNA metabolism. The EJC marks the position of the exon-exon junction in the mature mRNA for the gene expression machinery and the core components remain bound to spliced mRNAs throughout all stages of mRNA metabolism thereby influencing downstream processes including nuclear mRNA export, subcellular mRNA localization, translation efficiency and nonsense-mediated mRNA decay (NMD). The MAGO-Y14 heterodimer inhibits the ATPase activity of EIF4A3, thereby trapping the ATP-bound EJC core onto spliced mRNA in a stable conformation. The MAGO-Y14 heterodimer interacts with the EJC key regulator PYM leading to EJC disassembly in the cytoplasm (By similarity). EJC core heterodimers play essential roles in plant growth and development, and pollen and seed development (PubMed:25230811, PubMed:24820023). The MAGO-Y14 heterodimer selectively binds to the UDT1 (UNDEVELOPED TAPETUM 1) pre-mRNA transcript and regulates the splicing of UDT1, a key regulator in stamen development (PubMed:24820023).
Similarity
Belongs to the RBM8A family.
Mass
22.104 kDa
Sequence
MAAVTNADVEAVDFDPDDDDLMDEDAADPTPAPAPRLRSTIAGGGGGGGGGDDGQRKTKGRGFRDDAAPRDSRLAGAGRASDFDSLGSDGGPGPVRSIEGWIVLVTGVHEEAQEDDLHNIFRDFGQVKNLHLNLDRRTGFVKGYALIEYETFEEAQAAIKALDGTELLTQIISVDWAFSNGPVKRRNIRKRSPRRSRSPPRRRY

Gene
y14A
Protein
Uncharacterized 12.4 kDa protein in nrdA-td intergenic region
Organism
Enterobacteria phage T4
Length
108 amino acids
Mass
12.361 kDa
Sequence
MTNYSSVGRLCRVVNKYKSDFDVNIHRGTFWGNYVGKDAGSREAAIELFKKDFIRRIKSGEITKAHLEPLRGMRLGCTCKPKPCHGDIIAHIVNRLFKDDFQVEDLCN