Nemo kinase phosphorylates β-catenin to promote ommatidial rotation and connects core PCP factors to E-cadherin-β-catenin

Ivana Mirkovic, William J. Gault, Maryam Rahnama, Andreas Jenny, Konstantin Gaengel, Darrell Bessette, Cara J. Gottardi, Esther M. Verheyen, Marek Mlodzik

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Frizzled planar cell polarity (PCP) signaling regulates cell motility in several tissues, including ommatidial rotation in Drosophila melanogaster. The Nemo kinase (Nlk in vertebrates) has also been linked to cell-motility regulation and ommatidial rotation but its mechanistic role(s) during rotation remain obscure. We show that nemo functions throughout the entire rotation movement, increasing the rotation rate. Genetic and molecular studies indicate that Nemo binds both the core PCP factor complex of Strabismus-Prickle, as well as the E-cadherin-β-catenin (E-cadherin-Armadillo in Drosophila) complex. These two complexes colocalize and, like Nemo, also promote rotation. Strabismus (also called Vang) binds and stabilizes Nemo asymmetrically within the ommatidial precluster; Nemo andβ-catenin then act synergistically to promote rotation, which is mediated in vivo by Nemo's phosphorylation of β-catenin. Our data suggest that Nemo serves as a conserved molecular link between core PCP factors and E-cadherin-Î 2-catenin complexes, promoting cell motility.

Original languageEnglish (US)
Pages (from-to)665-672
Number of pages8
JournalNature Structural and Molecular Biology
Volume18
Issue number6
DOIs
StatePublished - Jun 2011

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Catenins
Cell Polarity
Cadherins
Phosphotransferases
Cell Movement
Strabismus
Armadillos
Drosophila melanogaster
Drosophila
Vertebrates
Molecular Biology
Phosphorylation

ASJC Scopus subject areas

  • Structural Biology
  • Molecular Biology

Cite this

Nemo kinase phosphorylates β-catenin to promote ommatidial rotation and connects core PCP factors to E-cadherin-β-catenin. / Mirkovic, Ivana; Gault, William J.; Rahnama, Maryam; Jenny, Andreas; Gaengel, Konstantin; Bessette, Darrell; Gottardi, Cara J.; Verheyen, Esther M.; Mlodzik, Marek.

In: Nature Structural and Molecular Biology, Vol. 18, No. 6, 06.2011, p. 665-672.

Research output: Contribution to journalArticle

Mirkovic, I, Gault, WJ, Rahnama, M, Jenny, A, Gaengel, K, Bessette, D, Gottardi, CJ, Verheyen, EM & Mlodzik, M 2011, 'Nemo kinase phosphorylates β-catenin to promote ommatidial rotation and connects core PCP factors to E-cadherin-β-catenin', Nature Structural and Molecular Biology, vol. 18, no. 6, pp. 665-672. https://doi.org/10.1038/nsmb.2049
Mirkovic, Ivana ; Gault, William J. ; Rahnama, Maryam ; Jenny, Andreas ; Gaengel, Konstantin ; Bessette, Darrell ; Gottardi, Cara J. ; Verheyen, Esther M. ; Mlodzik, Marek. / Nemo kinase phosphorylates β-catenin to promote ommatidial rotation and connects core PCP factors to E-cadherin-β-catenin. In: Nature Structural and Molecular Biology. 2011 ; Vol. 18, No. 6. pp. 665-672.
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