Small nucleolar RNA R12

Small nucleolar RNA R12 (also known as snoR12) is a non-coding RNA (ncRNA) molecule which functions in the modification of other small nuclear RNAs (snRNAs). This type of modifiying RNA is usually located in the nucleolus of the eukaryotic cell which is a major site of snRNA biogenesis. It is known as a small nucleolar RNA (snoRNA) and also often referred to as a guide RNA.

snoR12 belongs to the C/D box class of snoRNAs which contain the conserved sequence motifs known as the C box (UGAUGA) and the D box (CUGA). Most of the members of the box C/D family function in directing site-specific 2'-O-methylation of substrate RNAs [cite journal | last = Galardi | first = S | coauthors = Fatica A, Bachi A, Scaloni A, Presutti C, Bozzoni I | year = 2002 | title = Purified box C/D snoRNPs are able to reproduce site-specific 2'-O-methylation of target RNA in vitro | journal = Mol Cell Biol | volume = 22 | pages = 6663–6668 | pmid = 12215523 | doi = 10.1128/MCB.22.19.6663-6668.2002] .

snoR12 was identified by computational screen of the rice "Oryza sativa" genome and is predicted to acts as a methylation guide for 25S ribosomal RNA in plants cite journal | author = Chen CL, Liang D, Zhou H, Zhuo M, Chen YQ, Qu LH | title = The high diversity of snoRNAs in plants: identification and comparative study of 120 snoRNA genes from Oryza sativa | journal = Nucleic Acids Res. | volume = 31 | issue = 10 | pages = 2601–13 | year = 2003 | pmid = 12736310 | doi = | issn = ] . snoR12 has been alternatively named snoZ44 in "Arabidopsis thaliana" and snoZ131 in rice.

References

External links

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* [http://bioinf.scri.sari.ac.uk/cgi-bin/plant_snorna/home plant snoRNA database]