Small RNA 2'-O-methyltransferase-like, La-motif-containing domain
This domain is found in Small RNA 2'-O-methyltransferase from Arabidopsis thaliana (Hen1) and similar proteins from plants. Hen1 is a methyltransferase for miRNAs and all types of siRNAs, which protects these molecules from 3'-end uridylation and 3'- ...
This domain is found in Small RNA 2'-O-methyltransferase from Arabidopsis thaliana (Hen1) and similar proteins from plants. Hen1 is a methyltransferase for miRNAs and all types of siRNAs, which protects these molecules from 3'-end uridylation and 3'-to-5' exonuclease-mediated degradation. This protein shows five structural domains, four of which directly interact with the RNA substrate. This entry represents one of these four domains: the La-motif-containing domain (LCD) [1].
RNA silencing is a conserved regulatory mechanism in fungi, plants and animals that regulates gene expression and defence against viruses and transgenes. A conserved S-adenosyl-l-methionine-dependent RNA methyltransferase, HUA ENHANCER 1 (HEN1), and ...
RNA silencing is a conserved regulatory mechanism in fungi, plants and animals that regulates gene expression and defence against viruses and transgenes. A conserved S-adenosyl-l-methionine-dependent RNA methyltransferase, HUA ENHANCER 1 (HEN1), and its homologues are responsible for 2'-O-methylation on the 3' terminal nucleotide of microRNAs and small interfering RNAs (siRNAs). The 2'-O-methylation protects miRNAs and siRNAs from 3'-end uridylation and 3'-to-5' exonuclease-mediated degradation. This domain lies on the C-terminal region of the La-motif domain found in HEN1 [1].
This domain is found in HEN1 proteins from Arabidopsis. Structural characterization reveal that small RNA substrate bind to two double-stranded RNA (dsRNA)-specific binding domains, dsRBD1 and dsRBD2. This entry relates to dsRBD2 which together with ...
This domain is found in HEN1 proteins from Arabidopsis. Structural characterization reveal that small RNA substrate bind to two double-stranded RNA (dsRNA)-specific binding domains, dsRBD1 and dsRBD2. This entry relates to dsRBD2 which together with dsRBD1 forms a strong grip on the duplex region of the small RNA substrate, and these interactions help position the other duplex terminus towards the MTase domain Pfam:PF13847 [1].