Computational prediction and in vitro analysis of the potential ligand binding site within the extracellular ATP receptor, P2K2
| Autor: | Sung-Hwan Cho, Cuong the Nguyen, an Quoc Pham, Gary Stacey |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Plant Signaling & Behavior, Vol 18, Iss 1 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1559-2316 1559-2324 15592324 19296134 |
| DOI: | 10.1080/15592324.2023.2173146 |
| Popis: | The plant extracellular ATP (eATP) receptor, P2K2, binds eATP with strong ligand affinity through its extracellular lectin domain. Ligand binding activates the intracellular kinase domain of P2K2 resulting in a variety of intracellular responses and, ultimately, increased plant immunity to invading fungal and bacterial pathogens. Here, using a computational prediction approach, we developed a tertiary structure model of the P2K2 extracellular lectin domain. In silico target docking of ATP to the P2K2-binding site predicted interaction with several residues through hydrophobic interactions and hydrogen bonding. Our confirmation of the modeling was obtained by showing that H99, R144, and S256 are key residues essential for in vitro binding of ATP by P2K2. |
| Databáze: | Directory of Open Access Journals |
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