Synthetic design of farnesyl-electrostatic peptides for development of a protein kinase A membrane translocation switch
Abstract Molecular switches that respond to a biochemical stimulus in cells have proven utility as a foundation for developing molecular sensors and actuators that could be used to address important biological questions. Developing a molecular switch unfortunately remains difficult as it requires el...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-95840-8 |
| _version_ | 1818570441945513984 |
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| author | Allen K. Kim Helen D. Wu Takanari Inoue |
| author_facet | Allen K. Kim Helen D. Wu Takanari Inoue |
| author_sort | Allen K. Kim |
| collection | DOAJ |
| description | Abstract Molecular switches that respond to a biochemical stimulus in cells have proven utility as a foundation for developing molecular sensors and actuators that could be used to address important biological questions. Developing a molecular switch unfortunately remains difficult as it requires elaborate coordination of sensing and actuation mechanisms built into a single molecule. Here, we rationally designed a molecular switch that changes its subcellular localization in response to an intended stimulus such as an activator of protein kinase A (PKA). By arranging the sequence for Kemptide in tandem, we designed a farnesylated peptide whose localization can dramatically change upon phosphorylation by PKA. After testing a different valence number of Kemptide as well as modulating the linker sequence connecting them, we identified an efficient peptide switch that exhibited dynamic translocation between plasma membranes and internal endomembranes in a PKA activity dependent manner. Due to the modular design and small size, our PKA switch can have versatile utility in future studies as a platform for visualizing and perturbing signal transduction pathways, as well as for performing synthetic operations in cells. |
| first_indexed | 2024-12-14T13:41:21Z |
| format | Article |
| id | doaj.art-9cb8eb4962a94741883e9e8e641af37a |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-14T13:41:21Z |
| publishDate | 2021-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-9cb8eb4962a94741883e9e8e641af37a2022-12-21T22:59:26ZengNature PortfolioScientific Reports2045-23222021-08-0111111010.1038/s41598-021-95840-8Synthetic design of farnesyl-electrostatic peptides for development of a protein kinase A membrane translocation switchAllen K. Kim0Helen D. Wu1Takanari Inoue2Department of Biomedical Engineering, School of Medicine, Johns Hopkins UniversityDepartment of Biomedical Engineering, School of Medicine, Johns Hopkins UniversityDepartment of Biomedical Engineering, School of Medicine, Johns Hopkins UniversityAbstract Molecular switches that respond to a biochemical stimulus in cells have proven utility as a foundation for developing molecular sensors and actuators that could be used to address important biological questions. Developing a molecular switch unfortunately remains difficult as it requires elaborate coordination of sensing and actuation mechanisms built into a single molecule. Here, we rationally designed a molecular switch that changes its subcellular localization in response to an intended stimulus such as an activator of protein kinase A (PKA). By arranging the sequence for Kemptide in tandem, we designed a farnesylated peptide whose localization can dramatically change upon phosphorylation by PKA. After testing a different valence number of Kemptide as well as modulating the linker sequence connecting them, we identified an efficient peptide switch that exhibited dynamic translocation between plasma membranes and internal endomembranes in a PKA activity dependent manner. Due to the modular design and small size, our PKA switch can have versatile utility in future studies as a platform for visualizing and perturbing signal transduction pathways, as well as for performing synthetic operations in cells.https://doi.org/10.1038/s41598-021-95840-8 |
| spellingShingle | Allen K. Kim Helen D. Wu Takanari Inoue Synthetic design of farnesyl-electrostatic peptides for development of a protein kinase A membrane translocation switch Scientific Reports |
| title | Synthetic design of farnesyl-electrostatic peptides for development of a protein kinase A membrane translocation switch |
| title_full | Synthetic design of farnesyl-electrostatic peptides for development of a protein kinase A membrane translocation switch |
| title_fullStr | Synthetic design of farnesyl-electrostatic peptides for development of a protein kinase A membrane translocation switch |
| title_full_unstemmed | Synthetic design of farnesyl-electrostatic peptides for development of a protein kinase A membrane translocation switch |
| title_short | Synthetic design of farnesyl-electrostatic peptides for development of a protein kinase A membrane translocation switch |
| title_sort | synthetic design of farnesyl electrostatic peptides for development of a protein kinase a membrane translocation switch |
| url | https://doi.org/10.1038/s41598-021-95840-8 |
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