Object's details: Phototropin2 3’UTR overlaps with the AT5G58150 gene encoding an inactive RLK kinase

Provider:Repozytorium Instytutu Biochemii i Biofizyki Polskiej Akademii Nauk

Description

Title:
Phototropin2 3’UTR overlaps with the AT5G58150 gene encoding an inactive RLK kinase
Creator:
Łabuz, Justyna;
Banaś, Agnieszka Katarzyna;
Zgłobicki, Piotr;
Bażant, Aneta;
Sztatelman, Olga;
Giza, Aleksandra;
Lasok, Hanna;
Prochwicz, Aneta;
Kozłowska-Mroczek, Anna;
Jankowska, Urszula;
Hermanowicz, Paweł
Description:
ackground This study examines the biological implications of an overlap between two sequences in the Arabidop�sis genome, the 3’UTR of the PHOT2 gene and a putative AT5G58150 gene, encoded on the complementary strand. AT5G58150 is a probably inactive protein kinase that belongs to the transmembrane, leucine-rich repeat receptor-like kinase family. Phot2 is a membrane-bound UV/blue light photoreceptor kinase. Thus, both proteins share their cellular localization, on top of the proximity of their loci. Results The extent of the overlap between 3’UTR regions of AT5G58150 and PHOT2 was found to be 66 bp, using RACE PCR. Both the at5g58150 T-DNA SALK_093781C (with insertion in the promoter region) and 35S::AT5G58150�GFP lines overexpress the AT5G58150 gene. A detailed analysis did not reveal any substantial impact of PHOT2 or AT5G58150 on their mutual expression levels in diferent light and osmotic stress conditions. AT5G58150 is a plasma membrane protein, with no apparent kinase activity, as tested on several potential substrates. It appears not to form homodimers and it does not interact with PHOT2. Lines that overexpress AT5G58150 exhibit a greater reduction in lat‑ eral root density due to salt and osmotic stress than wild-type plants, which suggests that AT5G58150 may partici‑ pate in root elongation and formation of lateral roots. In line with this, mass spectrometry analysis identifed proteins with ATPase activity, which are involved in proton transport and cell elongation, as putative interactors of AT5G58150. Membrane kinases, including other members of the LRR RLK family and BSK kinases (positive regulators of brassinos‑ teroid signalling), can also act as partners for AT5G58150. Conclusions AT5G58150 is a membrane protein that does not exhibit measurable kinase activity, but is involved in signalling through interactions with other proteins. Based on the interactome and root architecture analysis, AT5G58150 may be involved in plant response to salt and osmotic stress and the formation of roots in Arabidopsis.
Object availability:
free access
Date:
2024.01.18
Type:
Article;
PeerReviewed
Language:
English
Format:
application/pdf
Relation: http://eprints.ibb.waw.pl/2367 ;https://bmcplantbiol.biomedcentral.com/articles/10.1186/s12870-024-04732-2 ;
10.1186/s12870-024-04732-2
Subject:
QH301 Biology
Identifier: http://eprints.ibb.waw.pl/2367/1/s12870-024-04732-2.pdf ;
Łabuz, Justyna and Banaś, Agnieszka Katarzyna and Zgłobicki, Piotr and Bażant, Aneta and Sztatelman, Olga and Giza, Aleksandra and Lasok, Hanna and Prochwicz, Aneta and Kozłowska-Mroczek, Anna and Jankowska, Urszula and Hermanowicz, Paweł (2024) Phototropin2 3’UTR overlaps with the AT5G58150 gene encoding an inactive RLK kinase. BMC Plant Biology, 24 (1). x55. ISSN 1471-2229
Data provider:
Repozytorium Instytutu Biochemii i Biofizyki Polskiej Akademii Nauk

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Object's details: Phototropin2 3’UTR overlaps with the AT5G58150 gene encoding an inactive RLK kinase

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