Regulator of calcineurin-2 is a centriolar protein with a role in cilia length control

Nicola L. Stevenson, Dylan J.M. Bergen, Amadeus Xu, Emily Wyatt, Freya Henry, Janine McCaughey, Laura Vuolo, Chrissy L. Hammond, David J. Stephens*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

10 Citations (Scopus)
263 Downloads (Pure)


Almost every cell in the human body extends a primary cilium. Defective cilia function leads to a set of disorders known as ciliopathies, which are characterised by debilitating developmental defects that affect many tissues. Here, we report a new role for regulator of calcineurin 2 (RCAN2) in primary cilia function. It localises to centrioles and the basal body and is required to maintain normal cilia length. RCAN2 was identified as the most strongly upregulated gene from a comparative RNAseq analysis of cells in which expression of the Golgi matrix protein giantin had been abolished by gene editing. In contrast to previous work where we showed that depletion of giantin by RNAi results in defects in ciliogenesis and in cilia length control, giantin knockout cells generate normal cilia after serum withdrawal. Furthermore, giantin knockout zebrafish show increased expression of RCAN2. Importantly, suppression of RCAN2 expression in giantin knockout cells results in the same defects in the control of cilia length that are seen upon RNAi of giantin itself. Together, these data defineRCAN2 as a regulator of cilia function that can compensate for the loss of giantin function.

Original languageEnglish
Article numberjcs212258
Number of pages8
JournalJournal of Cell Science
Issue number9
Early online date11 Apr 2018
Publication statusPublished - 1 May 2018


  • Calcineurin
  • Cilia
  • Giantin
  • Golgi
  • RCAN2


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