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Università della Svizzera italiana

The C-terminal domain of TPX2 is made of alpha-helical tandem repeats

Sanchez-Pulido, Luis ; Perez, Laurent ; Kuhn, Steffen ; Vernos, Isabelle ; Andrade-Navarro, Miguel A.

In: BMC structural biology, 2016, vol. 16, p. 17

Background: TPX2 (Targeting Protein for Xklp2) is essential for spindle assembly, activation of the mitotic kinase Aurora A and for triggering microtubule nucleation. Homologs of TPX2 in Chordata and plants were previously identified. Currently, proteins of the TPX2 family have little structural information and only small parts are covered by defined protein domains. Methods: We have used ...

Université de Fribourg

VAPYRIN Marks an endosomal trafficking compartment involved in arbuscular mycorrhizal symbiosis

Bapaume, Laure ; Laukamm, Sabine ; Darbon, Geoffrey ; Monney, Corinne ; Meyenhofer, Felix ; Feddermann, Nadja ; Chen, Min ; Reinhardt, Didier

In: Frontiers in Plant Science, 2019, vol. 10, p. -

Arbuscular mycorrhiza (AM) is a symbiosis between plants and AM fungi that requires the intracellular accommodation of the fungal partner in the host. For reciprocal nutrient exchange, AM fungi form intracellular arbuscules that are surrounded by the peri-arbuscular membrane. This membrane, together with the fungal plasma membrane, and the space in between, constitute the symbiotic interface,...

Université de Fribourg

TASmania: A bacterial Toxin-Antitoxin Systems database

Akarsu, Hatice ; Bordes, Patricia ; Mansour, Moise ; Bigot, Donna-Joe ; Genevaux, Pierre ; Falquet, Laurent

In: PLOS Computational Biology, 2019, vol. 15, no. 4, p. e1006946

Bacterial Toxin-Antitoxin systems (TAS) are involved in key biological functions including plasmid maintenance, defense against phages, persistence and virulence. They are found in nearly all phyla and classified into 6 different types based on the mode of inactivation of the toxin, with the type II TAS being the best characterized so far. We have herein developed a new in silico discovery...

Université de Fribourg

Targeting GATA transcription factors – a novel strategy for anti-aging interventions?

Zimmermann, Andreas ; Kainz, Katharina ; Hofer, Sebastian J. ; Bauer, Maria A. ; Schroeder, Sabrina ; Dengjel, Jörn ; Pietrocola, Federico ; Kepp, Oliver ; Ruckenstuhl, Christoph ; Eisenberg, Tobias ; Sigrist, Stephan J. ; Madeo, Frank ; Kroemer, Guido ; Carmona-Gutierrez, Didac

In: Microbial Cell, 2019, vol. 6, no. 5, p. 212–216

GATA transcription factors (TFs) constitute a conserved family of zinc-finger TFs that fulfill diverse functions across eukaryotes. Accumulating evidence suggests that GATA TFs also play a role in lifespan regulation. In a recent study, we identified a natural polyphenol, 4,4’-dimethoxychalcone (DMC), that extends lifespan depending on reduced activity of distinct GATA TFs. Prolonged...

Università della Svizzera italiana

Pemphigus autoantibodies generated through somatic mutations target the desmoglein-3 cis-interface

Di Zenzo, Giovanni ; Di Lullo, Giulia ; Corti, Davide ; Calabresi, Valentina ; Sinistro, Anna ; Vanzetta, Fabrizia ; Didona, Biagio ; Cianchini, Giuseppe ; Hertl, Michael ; Eming, Rudiger ; Amagai, Masayuki ; Ohyama, Bungo ; Hashimoto, Takashi ; Sloostra, Jerry ; Sallusto, Federica ; Zambruno, Giovanna ; Lanzavecchia, Antonio

In: The journal of clinical investigation, 2012, vol. 122, no. 10, p. 3781-3790

Pemphigus vulgaris (PV) is an autoimmune blistering disease of skin and mucous membranes caused by autoantibodies to the desmoglein (DSG) family proteins DSG3 and DSG1, leading to loss of keratinocyte cell adhesion. To learn more about pathogenic PV autoantibodies, we isolated 15 IgG antibodies specific for DSG3 from 2 PV patients. Three antibodies disrupted keratinocyte monolayers in vitro,...

Consortium of Swiss Academic Libraries

Traditional and emerging roles for the SLC9 Na+/H+ exchangers

Fuster, Daniel ; Alexander, R.

In: Pflügers Archiv - European Journal of Physiology, 2014, vol. 466, no. 1, p. 61-76

Université de Fribourg

The auxin influx carrier, OsAUX3, regulates rice root development and responses to aluminium stress

Wang, Mei ; Qiao, JiYue ; Yu, ChenLiang ; Chen, Hao ; Sun, ChenDong ; Huang, LinZhou ; Li, ChuanYou ; Geisler, Markus ; Qian, Qian ; Jiang, De An ; Qi, YanHua

In: Plant, Cell & Environment, 2019, vol. 42, no. 4, p. 1125–1138

In rice, there are five members of the auxin carrier AUXIN1/LIKE AUX1 family; however, the biological functions of the other four members besides OsAUX1 remain unknown. Here, by using CRISPR/Cas9, we constructed two independent OsAUX3 knock‐down lines, osaux3‐1 and osaux3‐2, in wild‐type rice, Hwayoung (WT/HY) and Dongjin (WT/DJ). osaux3‐1 and osaux3‐2 have shorter primary roots...

Université de Neuchâtel

From Asia to Europe : evaluation of parasitoids for the biological control of the invasive fruit pest "Drosophila suzukii"

Girod, Pierre ; Turlings, Ted (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Agricultural processes are constantly improved to improve crop yields. However, 40% of crop productions are currently lost to pests each year. Insect pests are one of the main factors of these losses and their management is one of the top priorities that researchers are facing worldwide. An important part of these losses are caused by pest with alien origins. Globalization and climate change...