part of telomerase holoenzyme complex box H/ACA RNP complex box H/ACA telomerase RNP complex 2015-09-21T14:46:16Z cellular_component A box H/ACA ribonucleoprotein complex that contains the RNA component of vertebrate telomerase, the enzyme essential for the replication of chromosome termini in most eukaryotes. This ribonucleoprotein complex is a structural box H/ACA RNP, which does not have the catalytic pseudouridylation function shared by the majority of H/ACA RNPs present in the cell. GO:0090661 tb nuclear protein-containing complex