Université de Fribourg

TWISTED DWARF1 mediates the action of auxin transport inhibitors on actin cytoskeleton dynamics

Zhu, Jinsheng ; Bailly, Aurelien ; Zwiewka, Marta ; Sovero, Valpuri ; Donato, Martin Di ; Ge, Pei ; Oehri, Jacqueline ; Aryal, Bibek ; Hao, Pengchao ; Linnert, Miriam ; Burgardt, Noelia Inés ; Lücke, Christian ; Weiwad, Matthias ; Michel, Max ; Weiergräber, Oliver H. ; Pollmann, Stephan ; Azzarello, Elisa ; Mancuso, Stefano ; Ferro, Noel ; Fukao, Yoichiro ; Hoffmann, Céline ; Wedlich-Söldner, Roland ; Friml, Jiří ; Thomas, Clément ; Geisler, Markus

In: The Plant Cell, 2016, vol. 28, no. 4, p. 930–948

Plant growth and architecture is regulated by the polar distribution of the hormone auxin. Polarity and flexibility of this process is provided by constant cycling of auxin transporter vesicles along actin filaments, coordinated by a positive auxin-actin feedback loop. Both polar auxin transport and vesicle cycling are inhibited by synthetic auxin transport inhibitors, such as...

Université de Fribourg

Regulation of ABCB1/PGP1-catalysed auxin transport by linker phosphorylation

Henrichs, Sina ; Wang, Bangjun ; Fukao, Yoichiro ; Zhu, Jinsheng ; Charrier, Laurence ; Bailly, Aurélien ; Oehring, Sophie C ; Linnert, Miriam ; Weiwad, Matthias ; Endler, Anne ; Nanni, Paolo ; Pollmann, Stephan ; Mancuso, Stefano ; Schulz, Alexander ; Geisler, Markus

In: The EMBO Journal, 2012, p. -

Polar transport of the plant hormone auxin is controlled by PIN- and ABCB/PGP-efflux catalysts. PIN polarity is regulated by the AGC protein kinase, PINOID (PID), while ABCB activity was shown to be dependent on interaction with the FKBP42, TWISTED DWARF1 (TWD1). Using co-immunoprecipitation (co-IP) and shotgun LC–MS/MS analysis, we identified PID as a valid partner in the interaction with...

Université de Fribourg

NMR assignments of the FKBP-type PPIase domain of FKBP42 from Arabidopsis thaliana

Burgardt, Noelia Inés ; Linnert, Miriam ; Weiwad, Matthias ; Geisler, Markus ; Lücke, Christian

In: Biomolecular NMR Assignments, 2012, p. -

The Atfkbp42 gene is associated with reduced and disoriented growth of Arabidopsis thaliana. Resonance assignments are reported for the FKBP-type PPIase domain of AtFKBP42. Signal intensities reveal an additional structure element that is atypical for such FKBP domains.