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Dual localization of the carboxy-terminal tail of GLR3.3 in sieve element--companion cell complex.
- Source :
-
Communicative & Integrative Biology . Dec2023, Vol. 16 Issue 1, p1-4. 4p. - Publication Year :
- 2023
-
Abstract
- Glutamate receptor-like (GLR) 3.3 and 3.6 proteins are required for mediating wound-induced leaf-toleaf electrical signaling. In the previous study, we found that the carboxy-terminal tail of GLR3.3 contains key residues that are indispensable for its action in electrical signaling. In the present work, we generated plants that expressed the truncated C-tail fraction of GLR3.3. To our expectation, the truncated C-tail itself was not functional in propagating leaf-to-leaf signals. However, we identified that the C-tail-mVENUS fusion proteins had dual localization patterns in sieve elements and companion cells. In companion cells, the fusion proteins overlapped largely with the nucleus. We speculated that a possible nuclear localization signal is present in the C-tail of GLR3.3, paralleling the C-tails of the ionotropic glutamate receptors in animal cells. Our further findings on the C-tail of GLR3.3 open up new possibilities for the regulatory roles of the C-tails to GLR proteins. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SIEVE elements
*GLUTAMATE receptors
*CELL receptors
*CHIMERIC proteins
Subjects
Details
- Language :
- English
- ISSN :
- 19420889
- Volume :
- 16
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Communicative & Integrative Biology
- Publication Type :
- Academic Journal
- Accession number :
- 174776801
- Full Text :
- https://doi.org/10.1080/19420889.2023.2167558