Homo sapiens U90 scaRNA. This C/D box scaRNA was cloned by Darzacq et al. (2002) from a HeLa cell extract immunoprecipitated with an anti-fabrillarin antibody. It is predicted to guide the 2'O-ribose methylation of residue A70 of U1 snRNA. It was localized by FISH to Cajal bodies after overexpression in HeLa cells.