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. 2022 Apr 15;11(8):1352. doi: 10.3390/cells11081352

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Model of interaction between SnRK2 and PP2C in the absence and presence of ABA. Abbreviations include apoPYL/PYL: ABA receptor (not bound/bound with ABA) with highlighted gate (S89) and latch loops, SnRK2: kinase with highlighted important amino acid position in activation loop (S175: phosphorylation site) and ABA box (interaction with PP2C), PP2C: phosphatase with highlighted W385 and E142 amino acids, as an essential element for activation/inhibition of SnRK2, P: phosphorylation. (Modified from [99]).