Proteomic Approaches to Identify Proteins Responsive to Cold Stress.
2020
Changing environmental conditions greatly affect the accumulation of many proteins; therefore, the analysis of alterations in the proteome is essential to understand the plant response to abiotic stress. Proteomics provides a platform for the identification and quantification of plant proteins responsive to cold stress and taking part in cold acclimation. Here, we describe the preparation of proteins for LC-MS measurement to monitor the changes of protein patterns during cold treatment in Arabidopsis thaliana. In our protocol, proteins are precipitated using TCA/acetone, quantified with 2D Quant Kit and digested with trypsin using a filter-based method and analyzed using an LC-MS approach. The acquired results can be further applied for label-free protein quantification.
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