he Cajal body (CB, formerly coiled body) is a prominent nuclear structure, yet its function remains obscure. Now, speculate that the CB is where small nuclear RNAs go for modification. Last year, Kiss's team identified a small guide RNA, U85, that directs both 2'-O-methylation and pseudouridylation of the spliceosomal component U5 snRNA. This year, they've identified six more RNAs, Novel guide ...