Antibody Tool Generation Services — Custom Antigens & Cell Lines

The quality of the tools used in an antibody discovery program directly determines the quality of the antibodies it produces. AVS Bio's tool generation service provides custom antigens, recombinant proteins, and target-expressing cell lines that immunization and screening campaigns require — designed for biological relevance and built for downstream compatibility with AVS Bio's discovery platforms.

Antigen Modeling

Before any material is produced, AVS Bio's team conducts an in-depth in silico analysis of the target to guide immunogen selection, identifying the most effective antigen strategy based on structural and sequence data. Immunogen formats supported include:

• Synthetic peptides — epitope-focused, for targets where peptide immunization is appropriate
• Recombinant proteins — full-length or domain-specific, with controlled presentation
• Virus-Like Particles (VLPs) — multivalent antigen display for enhanced immunogenicity
• Membrane mimetics — for membrane protein targets where native conformation is critical
• Target-expressing cell lines — preserving native folding, post-translational modifications, and membrane context
• Plasmids for genetic immunization — for targets where in vivo expression is preferred

Recombinant Proteins and Cell Lines

Recombinant proteins and target-expressing cell lines are indispensable components of antibody discovery programs, serving as critical reagents for both immunizations and selection strategies. Recombinant proteins enable controlled antigen presentation, while cell-based expression systems preserve native folding, post-translational modifications, and membrane context. AVS Bio provides both custom protein production and generates stable target-expressing cell lines, ensuring that discovery campaigns are supported with biologically relevant and high-quality materials.

Tools generated by AVS Bio are validated for use in the downstream discovery workflow — immunization, B cell selection, phage display, and characterization assays. This end-to-end continuity reduces handoff risk and ensures that screening reagents match immunization antigens.

Frequently Asked Questions

Q: What is antibody tool generation?

A: Antibody tool generation is the process of producing custom biological tools — including antigens, cell lines, and recombinant proteins — used to drive and support the antibody discovery workflow. These tools are designed to match the specific immunization, selection procedures and screening requirements of each program. AVS Bio produces tools tailored to target type, species, and downstream applications.

Q: What types of immunization tools does AVS Bio produce?

A: AVS Bio produces recombinant proteins and cell lines expressing the target antigen. AVS works together with partners to design and produce peptides and mRNA vaccines. Of course, also commercially available immunization tools such as recombinant proteins, small molecules, and virus-like particles (VLPs) can be used. Tool selection is guided by the target antigen’s structure, the species being immunized, and the antibody characteristics required for the downstream program.