A NYN domain protein directly interacts with DCP1 and is required for phyllotactic pattern in Arabidopsis
Autor: | Johana Chicher, Philippe Hammann, Anthony Gobert, Clara Chicois, Lauriane Kuhn, Elodie Ubrig, Aude Pouclet, Hélène Zuber, Dominique Gagliardi, Marlene Schiaffini, Jérôme Mutterer, Tiphaine Chartier, Damien Garcia |
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Přispěvatelé: | Institut de biologie moléculaire des plantes (IBMP), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA) |
Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
0106 biological sciences
0303 health sciences biology Chemistry Activator (genetics) Protein subunit [SDV]Life Sciences [q-bio] Endoribonuclease Protein domain Robustness (evolution) biology.organism_classification 01 natural sciences Cell biology [SDV.GEN.GPL]Life Sciences [q-bio]/Genetics/Plants genetics 03 medical and health sciences Decapping complex [SDV.BDD.EO]Life Sciences [q-bio]/Development Biology/Embryology and Organogenesis Arabidopsis [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry Molecular Biology/Genomics [q-bio.GN] [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Enhancer 030304 developmental biology 010606 plant biology & botany |
Popis: | In eukaryotes, general mRNA decay requires the decapping complex. The activity of this complex depends on its catalytic subunit, DCP2 and its interaction with decapping enhancers, including its main partner DCP1. Here, we report that in Arabidopsis, DCP1 also interacts with a NYN domain endoribonuclease, hence named DCP1-ASSOCIATED NYN ENDORIBONUCLEASE 1 (DNE1). Interestingly, we find DNE1 predominantly associated with DCP1 but not with DCP2 and reciprocally, suggesting the existence of two distinct protein complexes. We also show that the catalytic residues of DNE1 are required to repress the expression of mRNAs in planta upon transient expression. The overexpression of DNE1 in transgenic lines leads to growth defects and transcriptomic changes related to the one observed upon inactivation of the decapping complex. Finally, the combination of dne1 and dcp2 mutations, revealed a functional redundancy between DNE1 and DCP2 in controlling phyllotactic pattern formation in Arabidopsis. Our work identifies DNE1, a hitherto unknown DCP1 protein partner highly conserved in the plant kingdom and identifies its importance for developmental robustness.One-sentence summaryDNE1, a NYN domain protein interacts with the decapping activator DCP1 and, together with DCP2, specify phyllotactic patterns in Arabidopsis. |
Databáze: | OpenAIRE |
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