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    Antibody N-Terminal Cyclization Analysis Service

      Antibody N-terminal cyclization is a process in which the N-terminal amino acid sequence of an antibody forms a stable cyclic structure through a cyclization reaction. This reaction is typically catalyzed by enzymes such as cyclase, which recognize specific N-terminal sequences. The cyclization alters the antibody’s spatial structure, enhancing stability and function, reducing degradation and inactivation, and improving binding affinity to antigens. Additionally, the unique structure of cyclized antibodies may lower immunogenicity, decreasing the likelihood of being recognized as foreign by the immune system. Antibody N-terminal cyclization analysis is a sophisticated technique used to detect and study this modification, aiding in the development and optimization of antibody drugs by providing detailed structural and functional insights.


      MtoZ Biolabs has established an efficient, fast and accurate antibody N-terminal cyclization analysis platform based on high-throughput MS technology. The team of MtoZ Biolabs is composed of experienced scientists and technical experts who have deep expertise in the fields of antibody research and development. MtoZ Biolabs is committed to providing customers with high-quality and efficient services to promote the progress of antibody performance and utility. Free project evaluation, welcome to learn more details! Our technical specialists are available to provide a free business assessment.


      Analysis Workflow

      1. Sample Preparation

      Extracting antibodies from cell culture or in vivo samples.


      2. N-terminal Cyclization Reaction

      Using specific enzymatic reactions to cyclize the N-terminus of the antibody.


      3. Separation and Purification

      Employing high-performance liquid chromatography (HPLC) and other techniques to purify cyclized antibodies.


      4. Mass Spectrometry Analysis

      Utilizing mass spectrometry to confirm the success rate and position of cyclization.


      5. Functional Detection

      Assessing changes in bioactivity, such as antigen binding and stability, through functional assays.


      Service Advantages

      1. High Efficiency and Precision

      Our advanced mass spectrometry ensures accurate identification of cyclization sites and structures.


      2. Customized Service

      We offer tailored cyclization analysis solutions to meet diverse research and development needs.


      3. Comprehensive Support

      Our full technical support from sample preparation to data analysis, ensuring reliable results.


      4. Rich Experience

      Our researchers expertise in antibody analysis and a professional team capable of handling complex samples and requirements.



      1. Antibody Drug Development

      Optimizing antibody drug structures for enhanced stability and biological activity.


      2. Basic Research

      Facilitating studies on antibody structure and function and exploring antibody-antigen interactions.


      3. Biomarker Development

      Creating highly specific and sensitive biomarkers for disease diagnosis and treatment.


      4. Vaccine Research

      Enhancing vaccine antibody stability and immune response through cyclization, advancing vaccine development.



      1. Experimental Procedures

      2. Relevant Mass Spectrometry Parameters

      3. Detailed Information on Antibody N-Terminal Cyclization Analysis

      4. Mass Spectrometry Images

      5. Raw Data

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