Discovery of a Broad-Spectrum Fluorogenic Agonist for Strigolactone Receptors through a Computational Approach
| Autor: | Dejun Ma, Tao Wei, Da-Wei Wang, Lu Liang, Yongqing Ma, Huang-Ze Yang, Pang Zhili, Zhen Xi, Shu-Yi Yu, Xia Wang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Agonist
Virtual screening biology Chemistry medicine.drug_class Orobanche Strigolactone Plant physiology Germination General Chemistry Striga biology.organism_classification Lactones Biochemistry Arabidopsis medicine General Agricultural and Biological Sciences Receptor Heterocyclic Compounds 3-Ring |
| Zdroj: | Journal of agricultural and food chemistry. 69(36) |
| ISSN: | 1520-5118 |
| Popis: | Strigolactones (SLs) are plant hormones that play various roles in plant physiology, including provoking the germination of parasitic weeds Orobanche and Striga. A family of α/β-hydrolases have been proposed to be the SL receptor proteins. Effective assays for measuring the activity of SL receptors could promote the development of SL-related biology and chemistry. In this study, we developed a new approach called pharmacophore-linked probe virtual screening (PPVS). Its application yielded an effective "off-on" probe named Xilatone Red (XLR). This probe showed a broad spectrum and excellent sensitivity toward SL receptors, including ShD14 (Striga D14), for which the detection limit was determined to be in the micromolar range, outperforming that of the commercial fluorogenic agonist Yoshimulactone Green (YLG). Upon hydrolysis by SL receptors, XLR provided fluorogenic and colorimetric signaling responses. Furthermore, XLR could induce germination of Phelipanche aegyptiaca seeds and prevent Arabidopsis max4-1 branching defects at micromolar concentrations. Our molecular simulations revealed the essential factors in the molecular perception of XLR. We anticipate that this study can prompt the discovery of high-performance SL agonists/antagonists to combat parasitic weeds. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|