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    Class Generalization Level Inspection

      The SUMO (Small Ubiquitin-like Modifier) ubiquitination is a significant process of post-translational protein modification, involving the covalent linkage of SUMO proteins to specific lysine residues of target proteins. Such modification is essential for regulating the location, stability, and activity of proteins and for participating in the control of cell cycle, DNA damage repair, and signal transduction. Therefore, accurately detecting the level of SUMO ubiquitination is crucial for understanding various biological processes and disease mechanisms within cells. This article will introduce several common methods for detecting SUMO ubiquitination levels.


      Mass Spectrometry (MS)

      Mass spectrometry is one of the most precise techniques for detecting SUMO ubiquitination modification. By using high-sensitivity mass spectrometers such as Thermo's Orbitrap Fusion Lumos and combining it with Nano-Liquid Chromatography (Nano-LC), high-resolution and accurate identification of SUMOylated proteins and their modification sites can be achieved. This method allows for quantitative analysis of SUMO modification degree and identification of specific modification sites, providing a powerful tool for a deeper understanding of the function and mechanism of SUMOylation.


      Western Blot

      Through the use of Western blot analysis with specific antibodies against SUMO and its covalently linked target proteins, the SUMO ubiquitination state of specific proteins can be detected and confirmed. This method is simple and suitable for quick screening and preliminary analysis but is limited for quantitative analysis and identification of specific modification sites.


      Immunoprecipitation (IP)

      Immunoprecipitation is a powerful technique for studying protein interactions and their modification states. By using antibodies against SUMO or target proteins, SUMOylated proteins can be specifically enriched and further analyzed through Western blot or mass spectrometry. This method is especially useful for identifying the SUMOylation state in protein complexes.


      Enzyme-Linked Immunosorbent Assay (ELISA)

      The enzyme-linked immunosorbent assay can be used to quantitatively detect SUMOylated proteins. By designing specific antibodies to recognize SUMO and its target proteins, ELISA can provide direct quantitative information about SUMOylation levels, suitable for quick screening of large-scale samples.


      The combined use of these methods can not only comprehensively evaluate the state and function of SUMO ubiquitination but also reveal the association between SUMOylation and disease, providing a scientific basis for discovering new disease biomarkers and treatment targets. Especially, the mass spectrometry technique, because of its high resolution and sensitivity, has become an essential tool for studying the dynamic changes and function of SUMOylated proteins. MtoZ Biolabs, with its advanced mass spectrometry equipment and professional technical team, offers high-quality SUMO ubiquitination level detection services to help researchers further understand the complex mechanism of post-translational protein modifications.Free project evaluation!

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