Object's details: LSU family members and NBR1 are novel factors that contribute to homeostasis of catalases and peroxisomes in Arabidopsis thaliana

Provider:Repozytorium Instytutu Biochemii i Biofizyki Polskiej Akademii Nauk

Description

Title:
LSU family members and NBR1 are novel factors that contribute to homeostasis of catalases and peroxisomes in Arabidopsis thaliana
Creator:
Niemiro, Anna;
Jurczewski, Konrad;
Sieńko, Marzena;
Wawrzyńska, Anna;
Olszak, Marcin;
Poznański, Jarosław;
Sirko, Agnieszka
Description:
The short coiled-coil LSU (RESPONSE TO LOW SULFUR) proteins are linked to sulfur metabolism and have numerous protein partners. However, most of these partners lack direct links to sulfur metabolism, and the role of such interactions remains elusive. Here, we confirmed LSU binding to Arabidopsis catalase (CAT) and revealed that NBR1, a selective autophagy receptor, strongly interacts with LSU1 but not with CAT. Consequently, we observed the involvement of autophagy but not NBR1 in CAT removal. The lsu and nbr1 mutants differed from the wild-type plants in size and the number of yellow fluorescent protein (YFP)-CAT condensates, the number of peroxisomes, and photosynthetic pigments levels in the presence and absence of stress. We conclude that LSU family members and NBR1 contribute directly or indirectly to CAT and peroxisome homeostasis, and the overall fitness of plants. Our structural models of CAT–LSU complexes show at least two regions of interaction in CAT, one of which is at the N-terminus. Indeed, the
Object availability:
free access
Date:
2024.10.25
Type:
Article;
PeerReviewed
Language:
English
Format:
application/pdf
Publisher:
Nature Portfolio
Relation: http://eprints.ibb.waw.pl/2479 ;https://www.nature.com/articles/s41598-024-76862-4 ;
10.1038/s41598-024-76862-4
Subject:
Q Science (General)
Identifier: http://eprints.ibb.waw.pl/2479/1/Niemiro-SciRep.pdf ;
Niemiro, Anna and Jurczewski, Konrad and Sieńko, Marzena and Wawrzyńska, Anna and Olszak, Marcin and Poznański, Jarosław and Sirko, Agnieszka (2024) LSU family members and NBR1 are novel factors that contribute to homeostasis of catalases and peroxisomes in Arabidopsis thaliana. Scientific Reports, 14 (1). pp. 25412-25426. ISSN 2045-2322
Data provider:
Repozytorium Instytutu Biochemii i Biofizyki Polskiej Akademii Nauk

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Object's details: LSU family members and NBR1 are novel factors that contribute to homeostasis of catalases and peroxisomes in Arabidopsis thaliana

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