2022
ABP1-TMK auxin perception for global phosphorylation and auxin canalization
FRIML, Jiri, Michelle GALLEI, Zuzana GELOVA, Alexander JOHNSON, Ewa MAZUR et. al.Základní údaje
Originální název
ABP1-TMK auxin perception for global phosphorylation and auxin canalization
Autoři
FRIML, Jiri, Michelle GALLEI, Zuzana GELOVA, Alexander JOHNSON, Ewa MAZUR, Aline MONZER, Lesia RODRIGUEZ, Mark ROOSJEN, Inge VERSTRAETEN, Branka D ZIVANOVIC, Minxia ZOU, Lukas FIEDLER, Caterina GIANNINI, Peter GRONES, Monika HRTYAN, Walter A KAUFMANN, Andre KUHN, Madhumitha NARASIMHAN, Marek RANDUCH, Nikola RÝDZA (703 Slovensko, garant, domácí), Koji TAKAHASHI, Shutang TAN, Anastasia TEPLOVA, Toshinori KINOSHITA, Dolf WEIJERS a Hana RAKUSOVA
Vydání
Nature, LONDON, NATURE PUBLISHING GROUP, 2022, 0028-0836
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 64.800
Kód RIV
RIV/00216224:14740/22:00128524
Organizační jednotka
Středoevropský technologický institut
UT WoS
000851357500002
Klíčová slova anglicky
BINDING PROTEIN-1ARABIDOPSISTRANSPORTGRADIENTSCOMPLEXMODULEGROWTH
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 8. 10. 2024 10:30, Ing. Martina Blahová
Anotace
V originále
The phytohormone auxin triggers transcriptional reprogramming through a well-characterized perception machinery in the nucleus. By contrast, mechanisms that underlie fast effects of auxin, such as the regulation of ion fluxes, rapid phosphorylation of proteins or auxin feedback on its transport, remain unclear(1-3). Whether auxin-binding protein 1 (ABP1) is an auxin receptor has been a source of debate for decades(1,4). Here we show that a fraction of Arabidopsis thaliana ABP1 is secreted and binds auxin specifically at an acidic pH that is typical of the apoplast. ABP1 and its plasma-membrane-localized partner, transmembrane kinase 1 (TMK1), are required for the auxin-induced ultrafast global phospho-response and for downstream processes that include the activation of H+-ATPase and accelerated cytoplasmic streaming. abp1 and tmk mutants cannot establish auxin-transporting channels and show defective auxin-induced vasculature formation and regeneration. An ABP1(M2X) variant that lacks the capacity to bind auxin is unable to complement these defects in abp1 mutants. These data indicate that ABP1 is the auxin receptor for TMK1-based cell-surface signalling, which mediates the global phospho-response and auxin canalization.
Návaznosti
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