SCARNA18, Official Symbol SCARNA18provided by HGNC Official Full Name small Cajal body-specific RNA 18provided by HGNC Primary source HGNC:HGNC:32559 See related Ensembl:ENSG00000238835 MIM:611329; AllianceGenome:HGNC:32559 Gene type ncRNA RefSeq status VALIDATED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as U109; SCARNA18A Summary Small nucleolar RNAs (snoRNAs) are small noncoding RNAs involved in RNA processing. Box H/ACA snoRNAs, such as SCARNA18, direct the conversion of uridine to pseudouridine at specific residues of ribosomal RNAs or small nuclear RNAs (snRNAs) (Gu et al., 2005).[supplied by OMIM, Mar 2008]