MassIVE MSV000090945

Complete Public PXD039040

Phototropin2 3'UTR overlaps with the AT5G58150 gene encoding an inactive RLK kinase

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Description

This study aimed to investigate the biological implications of two overlapping sequences in the Arabidopsis genome, the 3UTR 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 UV/blue light, membrane-bound photoreceptor kinase. Thus, both proteins share their cellular localization, apart from the loci proximity. Both the at5g58150 T-DNA SALK_093781C and 35S::AT5G58150-GFP lines overexpress the AT5G58150 gene. However, a detailed analysis did not prove any substantial impact of PHOT2 or AT5G58150 on their mutual expression levels in the different light and osmotic stress conditions. This may result from only a small overlap found for 3UTR regions of both genes consisting of 66 bp. AT5G58150 is a plasma membrane protein, with no apparent kinase activity. We could not observe AT5G58150 homodimer formation or any significant interaction with PHOT2. Our findings show that AT5G58150 may be involved in the development of root structures such as primordia or lateral roots. In line with this, mass spectrometry analysis identified 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 brassinosteroid signalling), can also act as partners for AT5G58150. [doi:10.25345/C5N29PC0Q] [dataset license: CC0 1.0 Universal (CC0 1.0)]

Keywords: Arabidopsis ; AT5G58150 ; LRR RLK ; kinase ; phototropin2

Contact

Principal Investigators:
(in alphabetical order) 		Justyna Labuz, Malopolska Centre of Biotechnology, Jagiellonian University, Poland
Submitting User: Urszula

Publications

?abuz J, Bana? AK, Zg?obicki P, Ba?ant A, Sztatelman O, Giza A, Lasok H, Prochwicz A, Koz?owska-Mroczek A, Jankowska U, Hermanowicz P.
Phototropin2 3'UTR overlaps with the AT5G58150 gene encoding an inactive RLK kinase.
BMC Plant Biol. 2024 Jan 18;24(1):55. Epub 2024 Jan 18.

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