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Université de Fribourg

Auxin-transporting ABC transporters are defined by a conserved D/E-P motif regulated by a prolylisomerase

Hao, Pengchao ; Xia, Jian ; Liu, Jie ; Donato, Martin Di ; Pakula, Konrad ; Bailly, Aurélien ; Jasinski, Michal ; Geisler, Markus

In: Journal of Biological Chemistry, 2020, vol. 295, no. 37, p. 13094–13105

The plant hormone auxin must be transported throughout plants in a cell-to-cell manner to affect its various physiological functions. ABCB transporters are critical for this polar auxin distribution, but the regulatory mechanisms controlling their function is not fully understood. The auxin transport activity of ABCB1 was suggested to be regulated by a physical interaction with FKBP42/Twisted...

Université de Fribourg

Unconventional free charge in the correlated semimetal Nd2Ir2O7

Wang, K. ; Xu, Bing ; Rischau, C. W. ; Bachar, N. ; Michon, B. ; Teyssier, J. ; Qiu, Y. ; Ohtsuki, T. ; Cheng, Bing ; Armitage, N. P. ; Nakatsuji, S. ; van der Marel, D.

In: Nature Physics, 2020, p. -

Nd2Ir2O7 is a correlated semimetal with the pyrochlore structure, in which competing spin–orbit coupling and electron–electron interactions are believed to induce a time- reversal symmetry-broken Weyl semimetal phase characterized by pairs of topologically protected Dirac points at the Fermi energy1,2,3,4. However, the emergent properties in these materials are far from clear, and exotic...

Université de Fribourg

Unconventional orbital ordering and emergent dimensional reduction in fulleride superconductors

Hoshino, Shintaro ; Werner, Philipp ; Arita, Ryotaro

In: Physical Review B, 2019, vol. 99, no. 23, p. 235133

Nonlocal order parameters in space-time are proposed to characterize the unconventional orbital-selective conducting state in fulleride superconductors, called the Jahn-Teller metal. In previous works, it has been argued that this state can be interpreted as a spontaneous orbital-selective Mott state, in which the electrons in two of the three t1u molecular orbitals are localized, while those...