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    J Cell Sci. 2008 Sep 15;121(Pt 18):3062-70.

    Centrin4 coordinates cell and nuclear division in T. brucei.

    Source

    Department of Biological Sciences, National University of Singapore, Singapore 117543.

    Abstract

    Centrins are Ca(2+)-binding proteins that have been implicated in a number of biological processes, including organelle duplication, mRNA export, DNA repair and signal transduction. In the protozoan parasite Trypanosoma brucei we have previously described TbCentrin2, which is present on a bi-lobed structure, and involved in the duplication and segregation of the Golgi complex. Recently, another centrin, TbCentrin4, was also found at the bi-lobe and has been implicated in organelle segregation and cytokinesis. We now show that cytokinesis is not inhibited, but that a dysregulation of nuclear and cell division leads to the production of zoids - daughter siblings that contain all organelles except the nucleus. Our results, therefore, suggest that TbCentrin4 is involved in processes that coordinate karyokinesis and cytokinesis.

    PMID:
    18768932
    [PubMed - indexed for MEDLINE]
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