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Updated: Jan 22, 2026
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Profiling Ubiquitin and Ubiquitin-like Dependent Post-translational Modifications and Identification of Significant Alterations
Published on: November 7, 2019
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Differentiation of Essential Oils Using Nanofluidic Protein Post-Translational Modification Profiling
1College of Pharmacy, Roseman University of Health Sciences, 10530 Discovery Drive, Las Vegas, NV 89135, USA.
Molecules (Basel, Switzerland)
|June 30, 2019
Summary
Nanofluidic protein post-translational modification (PTM) profiling offers a novel way to authenticate essential oils by examining their biochemical impact. This method effectively assessed essential oil quality and identified variations undetectable by traditional chemical analysis.
Area of Science:
- Biochemistry
- Analytical Chemistry
- Cell Biology
Background:
- Traditional essential oil authentication relies on chemical composition analysis.
- Existing methods may fail to detect subtle differences or adulteration in essential oils.
- Understanding the biochemical effects of essential oils is crucial for quality and therapeutic assessment.
Purpose of the Study:
- To introduce and validate nanofluidic protein post-translational modification (PTM) profiling as a method for essential oil authentication.
- To compare the efficacy of protein PTM profiling with Gas Chromatography-Mass Spectrometry (GC-MS) in assessing essential oil quality.
- To investigate the biochemical effects of copaiba, mandarin, Melissa, and turmeric essential oils on specific cellular signaling pathways.
Main Methods:
- Protein PTM profiling was utilized to measure the impact of essential oils on protein phosphorylation in key signaling pathways (MAPK, PI3K/Akt/mTOR, JAK/STAT) in HepG2 cells.
- Gas Chromatography-Mass Spectrometry (GC-MS) was employed in parallel for chemical composition analysis.
- The study focused on phosphorylation changes in specific proteins including MEK1/2, ERK1/2, Akt, 4EBP1, and STAT3.
Main Results:
- Protein PTM profiling successfully differentiated essential oils based on their biochemical effects.
- The method corroborated GC-MS findings in identifying adulterated mandarin, Melissa, and turmeric essential oils.
- Protein PTM profiling uniquely distinguished between different batches of copaiba essential oils, revealing biochemical variations not detectable by GC-MS.
Conclusions:
- Nanofluidic protein PTM profiling is a robust technique for assessing essential oil quality and identifying adulteration.
- This biochemical approach offers advantages over purely chemical analysis, particularly for detecting functional differences.
- Protein PTM profiling holds promise for evaluating the therapeutic potential of essential oils.
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