Small nucleolar RNA R160 of the members of the box C/D family function in directing site-specific 2'-O-methylation of substrate RNAs. snoR160 was identified by computational screening of the rice "Oryza sativa" and is predicted to acts as a methylation guide for 25S ribosomal RNA in plants. snoR160 has also been alternatively named snoZ270 in rice. Small nucleolar RNA R160 Samm nucleolar RNA R160 (also known as snoR160) is a non-coding RNA (ncRNA) molecule identified in plants which functions in the modification of other small nuclear RNAs (snRNAs). This type of modifying RNA is usually located in the nucleolus of the eukaryotic cell which is
Helitron (biology) Helitron (biology) Helitrons are one of the three groups of eukaryotic class 2 transposable elements (TEs) so far described. They are the eukaryotic rolling-circle transposable elements which are hypothesized to transpose by a rolling circle replication mechanism via a single-stranded DNA intermediate. They were first discovered in plants ("Arabidopsis thaliana" and "Oryza sativa") and in the nematode "Caenorhabditis elegans", and now they have been identified in a diverse range of species, from protists to mammals. Helitrons make up a substantial fraction of many genomes where non-autonomous elements frequently outnumber the putative autonomous partner. Helitrons seem to have a major role