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 () IF with an anti Nop1 serum (red) shows the nucleolus as a hat-like structure in the nucleus of a trophozoite stage. An anti-human Nop1 serum (green) recognizes exactly the same sub-nuclear region. () Double-labelling reveals that PfTERT (red) co-localizes with part of the nucleolus (green); yellow spot in the merge image. () Immuno-EM shows that PfTERT (white arrow head) localizes to a peripheral region of the nucleus. In (A and B), DNA was stained with DAPI (blue).