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High Throughput, Absolute Determination of the Content of a Selected Protein at Tissue Levels Using Quantitative Dot Blot Analysis QDB
Published on: August 21, 2018
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Absolute Quantitation of Plant Proteins
Nagib Ahsan1,2, Rashaun S Wilson3, Jay J Thelen4
1Division of Biology and Medicine, Brown University, Providence, Rhode Island.
Current Protocols in Plant Biology
|July 25, 2018
Summary
This study details a protocol for accurate plant protein quantitation using AQUA-MRM (Absolute Quantitative - Multiple Reaction Monitoring). The method ensures high sensitivity, specificity, and reproducibility for reliable results in plant research.
Area of Science:
- Proteomics
- Biochemistry
- Plant Science
Background:
- Accurate protein quantitation is crucial in plant biology.
- Targeted proteomic techniques offer enhanced reliability.
- AQUA-MRM (Absolute Quantitative - Multiple Reaction Monitoring) is a leading method for precise protein quantification.
Purpose of the Study:
- To provide a detailed protocol for developing and validating AQUA-MRM assays.
- To enable absolute quantitation of plant proteins in vivo.
- To ensure robustness and reproducibility in plant proteomics.
Main Methods:
- Utilizes unique, heavy-labeled peptide standards.
- Employs triple-quadrupole mass spectrometry.
- Outlines key steps for plant sample preparation and assay validation.
Main Results:
- The protocol facilitates accurate protein quantitation in plant samples.
- Demonstrates high sensitivity, specificity, and reproducibility of the AQUA-MRM method.
- Enables reliable absolute quantification of target proteins.
Conclusions:
- The presented protocol is essential for robust AQUA-MRM assay development in plants.
- This method significantly advances plant protein quantitation capabilities.
- Facilitates precise and reproducible analysis of plant proteomes.
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