Copyright information:Taken from "The unusually large telomerase reverse-transcriptase localizes in a discrete compartment associated with the nucleolus"Nucleic Acids Research 2005;33(3):1111-1122.Published online 18 Feb 2005PMCID:PMC549419.© The Author 2005. Published by Oxford University Press. All rights reserved The tree was built as described in Materials and Methods. A total of 1000 bootstraps experiments were performed, and bootstraps >50% are shown. Abbreviations of the species are as in . The unit of branch length is the expected fraction of changed amino acids.