PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26139264-3 2015 It is composed of a 60 kDa protein (Ro 60 or SS-A) that is non-covalently associated with at least one of the four short uridine-rich RNAs (the hY RNAs). Uridine 121-128 tripartite motif containing 21 Homo sapiens 45-49