A cell-free system for real-time analyses of centriole disengagement and centriole-to-centrosome conversion Journal Article


Authors: Soni, R. K.; Tsou, M. F. B.
Article Title: A cell-free system for real-time analyses of centriole disengagement and centriole-to-centrosome conversion
Abstract: Centriole or centrosome number in cycling cells is strictly maintained through coordinated duplication and segregation. Duplication is limited to once only per cell cycle by separating the assembly event that occurs in S/G2 phase from the two licensing events, centriole disengagement and centriole-to-centrosome conversion, both of which occurs in mitosis. In addition to duplication licensing, centriole-to-centrosome conversion also enables centrioles to associate with spindle poles and thereby to segregate equally during cell division. Centriole disengagement and centriole-to-centrosome conversion thus constitute the major regulatory module ensuring centrosome homeostasis in cycling cells. Using Xenopus egg extracts and purified engaged centrioles, we here describe an in vitro assay allowing us to synchronously induce the initiation of centriole disengagement and centrosome formation, pause the reaction anytime during the process, and more importantly, preserve "reaction intermediates" for further analyses.
Keywords: centriole; centrosome; cycle; disengagement; duplication; duplication licensing; centriole-to-centrosome conversion; mtoc; pcm; xenopus egg extract
Journal Title: Methods in Molecular Biology
Volume: 1413
ISSN: 1064-3745
Publisher: Humana Press Inc  
Date Published: 2016-01-01
Start Page: 197
End Page: 206
Language: English
ACCESSION: WOS:000381638300014
PROVIDER: wos
PMCID: PMC5039041
PUBMED: 27193851
DOI: 10.1007/978-1-4939-3542-0_13
Notes: In Chapter 13 of "The Mitotic Spindle: Methods and Protocols" (ISBN: 978-1-4939-3540-6) -- Source: Wos
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  1. Rajesh Kumar Soni
    18 Soni
  2. Meng-Fu Bryan Tsou
    31 Tsou