5jo2: Difference between revisions

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== Function ==
== Function ==
[https://www.uniprot.org/uniprot/PYL3_ARATH PYL3_ARATH] Receptor for abscisic acid (ABA) required for ABA-mediated responses such as stomatal closure and germination inhibition. Inhibits the activity of group-A protein phosphatases type 2C (PP2Cs) when activated by ABA (By similarity).
[https://www.uniprot.org/uniprot/PYL3_ARATH PYL3_ARATH] Receptor for abscisic acid (ABA) required for ABA-mediated responses such as stomatal closure and germination inhibition. Inhibits the activity of group-A protein phosphatases type 2C (PP2Cs) when activated by ABA (By similarity).
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== Publication Abstract from PubMed ==
Classically, hormones elicit specific cellular responses by activating dedicated receptors. Nevertheless, the biosynthesis and turnover of many of these hormone molecules also produce chemically related metabolites. These molecules may also possess hormonal activities; therefore, one or more may contribute to the adaptive plasticity of signaling outcomes in host organisms. Here, we show that a catabolite of the plant hormone abscisic acid (ABA), namely phaseic acid (PA), likely emerged in seed plants as a signaling molecule that fine-tunes plant physiology, environmental adaptation, and development. This trait was facilitated by both the emergence-selection of a PA reductase that modulates PA concentrations and by the functional diversification of the ABA receptor family to perceive and respond to PA. Our results suggest that PA serves as a hormone in seed plants through activation of a subset of ABA receptors. This study demonstrates that the co-evolution of hormone metabolism and signaling networks can expand organismal resilience.
Co-evolution of Hormone Metabolism and Signaling Networks Expands Plant Adaptive Plasticity.,Weng JK, Ye M, Li B, Noel JP Cell. 2016 Aug 11;166(4):881-93. doi: 10.1016/j.cell.2016.06.027. PMID:27518563<ref>PMID:27518563</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==See Also==
==See Also==
*[[Abscisic acid receptor 3D structures|Abscisic acid receptor 3D structures]]
*[[Abscisic acid receptor 3D structures|Abscisic acid receptor 3D structures]]
*[[Protein phosphatase 3D structures|Protein phosphatase 3D structures]]
*[[Protein phosphatase 3D structures|Protein phosphatase 3D structures]]
== References ==
<references/>
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Latest revision as of 12:37, 6 March 2024

Crystal structure of abscisic acid-bound abscisic acid receptor PYL3 in complex with type 2C protein phosphatase HAB1

5jo2, resolution 2.42Å

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