Source:http://linkedlifedata.com/resource/umls/id/C1167086
GO: A ribonucleoprotein complex that contains an RNA molecule of the small nucleolar RNA (snoRNA) family and associated proteins. Most are involved in a step of processing of rRNA: cleavage, 2'-O-methylation, or pseudouridylation. The majority, though not all, fall into one of two classes, box C/D type or box H/ACA type. [GOC:krc, GOC:mah, ISBN:0879695897]