Mtor-rapamycin Interaction
Mtor-rapamycin Interaction - Related Videos
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A Semi-Quantitative Drug Affinity Responsive Target Stability (DARTS) assay for studying Rapamycin/mTOR interaction
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Cited by 14 •
2019
In this study, we enhanced the data analysis capabilities of the DARTS experiment by monitoring the changes in protein stability and estimating the affinity of protein-ligand interactions. The interactions can be plotted into two curves: a proteolytic curve and a dose-dependence curve. We have used mTOR-rapamycin interaction as an exemplary case.
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mTOR Signaling and Cancer Progression
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2023
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors. The mTOR pathway or the...
03:03
mTOR Signaling and Cancer Progression
0 Views •
2021
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors. The mTOR pathway or the...
01:22
PI3K/mTOR/AKT Signaling Pathway
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2023
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a rapamycin-insensitive companion...
06:56
Development and Application of Rapamycin-regulated Tyrosine Phosphatases
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2024
This protocol describes the design, creation, and application of rapamycin-regulated phosphatases. This method provides high specificity and tight temporal control of phosphatase activation in living cells.
FAQs
FKBP12 serves as the intracellular binding partner that enables rapamycin to regulate mTOR. Rapamycin first associates with FKBP12, creating a drug-protein complex that can recognize the FKBP-rapamycin binding domain on mTOR. This arrangement links ligand binding to kinase regulation rather than relying on rapamycin acting alone.
The interaction is directed toward the FKBP-rapamycin binding domain associated with mTORC1, so its principal biochemical consequence is reduced mTORC1 activity. This selectivity helps explain why downstream effects center on processes controlled by that complex, including protein synthesis and autophagy, instead of representing uniform inhibition of every mTOR-related function.
Rapamycin responses depend on the cellular conditions in which mTOR signaling is examined. Because mTOR integrates nutrient, energy, and growth signals, the consequences of reduced mTORC1 activity can vary with those inputs. In particular, suppression of protein synthesis and promotion of autophagy should be interpreted in relation to the surrounding cellular state.
The binding event becomes biologically significant when it lowers mTORC1 activity, a regulatory change that connects molecular recognition with cell-level outcomes. Reduced activity suppresses protein synthesis and can promote autophagy, depending on cellular conditions. These outcomes allow biochemists to relate a specific drug-protein interaction to changes in growth-related metabolism.
A biochemical study can examine how rapamycin, FKBP12, and the mTOR binding domain contribute to kinase regulation, then relate that regulation to mTORC1-controlled processes. The interaction provides a framework for analyzing nutrient signaling, changes in protein synthesis, and autophagy, helping connect molecular events with broader control of cell growth and metabolism.
The interaction is relevant because mTOR coordinates signals that influence cell growth and metabolism, while dysregulated growth signaling contributes to disease contexts identified for therapeutic investigation. Studying rapamycin-mediated regulation therefore supports research on cancer, metabolic disorders, and other conditions involving abnormal cell growth, while also clarifying how kinase pathways may be targeted.