CP110 exhibits novel regulatory activities during centriole assembly in Drosophila.

CP110 is a conserved centriole protein implicated in the regulation of cell division, centriole duplication, and centriole length and in the suppression of ciliogenesis. Surprisingly, we report that mutant flies lacking CP110 (CP110Δ) were viable and fertile and had no obvious defects in cell divisi...

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Main Authors: Franz, A, Roque, H, Saurya, S, Dobbelaere, J, Raff, J
Format: Journal article
Language:English
Published: 2013
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author Franz, A
Roque, H
Saurya, S
Dobbelaere, J
Raff, J
author_facet Franz, A
Roque, H
Saurya, S
Dobbelaere, J
Raff, J
author_sort Franz, A
collection OXFORD
description CP110 is a conserved centriole protein implicated in the regulation of cell division, centriole duplication, and centriole length and in the suppression of ciliogenesis. Surprisingly, we report that mutant flies lacking CP110 (CP110Δ) were viable and fertile and had no obvious defects in cell division, centriole duplication, or cilia formation. We show that CP110 has at least three functions in flies. First, it subtly influences centriole length by counteracting the centriole-elongating activity of several centriole duplication proteins. Specifically, we report that centrioles are ~10% longer than normal in CP110Δ mutants and ~20% shorter when CP110 is overexpressed. Second, CP110 ensures that the centriolar microtubules do not extend beyond the distal end of the centriole, as some centriolar microtubules can be more than 50 times longer than the centriole in the absence of CP110. Finally, and unexpectedly, CP110 suppresses centriole overduplication induced by the overexpression of centriole duplication proteins. These studies identify novel and surprising functions for CP110 in vivo in flies.
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spelling oxford-uuid:a59f38b1-f255-4f76-8d97-a180eeb2234e2022-03-27T02:41:39ZCP110 exhibits novel regulatory activities during centriole assembly in Drosophila.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a59f38b1-f255-4f76-8d97-a180eeb2234eEnglishSymplectic Elements at Oxford2013Franz, ARoque, HSaurya, SDobbelaere, JRaff, JCP110 is a conserved centriole protein implicated in the regulation of cell division, centriole duplication, and centriole length and in the suppression of ciliogenesis. Surprisingly, we report that mutant flies lacking CP110 (CP110Δ) were viable and fertile and had no obvious defects in cell division, centriole duplication, or cilia formation. We show that CP110 has at least three functions in flies. First, it subtly influences centriole length by counteracting the centriole-elongating activity of several centriole duplication proteins. Specifically, we report that centrioles are ~10% longer than normal in CP110Δ mutants and ~20% shorter when CP110 is overexpressed. Second, CP110 ensures that the centriolar microtubules do not extend beyond the distal end of the centriole, as some centriolar microtubules can be more than 50 times longer than the centriole in the absence of CP110. Finally, and unexpectedly, CP110 suppresses centriole overduplication induced by the overexpression of centriole duplication proteins. These studies identify novel and surprising functions for CP110 in vivo in flies.
spellingShingle Franz, A
Roque, H
Saurya, S
Dobbelaere, J
Raff, J
CP110 exhibits novel regulatory activities during centriole assembly in Drosophila.
title CP110 exhibits novel regulatory activities during centriole assembly in Drosophila.
title_full CP110 exhibits novel regulatory activities during centriole assembly in Drosophila.
title_fullStr CP110 exhibits novel regulatory activities during centriole assembly in Drosophila.
title_full_unstemmed CP110 exhibits novel regulatory activities during centriole assembly in Drosophila.
title_short CP110 exhibits novel regulatory activities during centriole assembly in Drosophila.
title_sort cp110 exhibits novel regulatory activities during centriole assembly in drosophila
work_keys_str_mv AT franza cp110exhibitsnovelregulatoryactivitiesduringcentrioleassemblyindrosophila
AT roqueh cp110exhibitsnovelregulatoryactivitiesduringcentrioleassemblyindrosophila
AT sauryas cp110exhibitsnovelregulatoryactivitiesduringcentrioleassemblyindrosophila
AT dobbelaerej cp110exhibitsnovelregulatoryactivitiesduringcentrioleassemblyindrosophila
AT raffj cp110exhibitsnovelregulatoryactivitiesduringcentrioleassemblyindrosophila