Are you seeking a highly specific, application-ready antibody? With ProteoGenix’s dual-platform approach to custom rabbit antibody discovery, you’ll access the exact antibody you need, tailored to any antigen.

Custom rabbit antibodies for any target and application

At ProteoGenix, we offer two rabbit antibody discovery platforms. Why two? Because we understand that no single approach can optimally address all antibody discovery challenges, especially given the unique complexities of each antigen and application. By leveraging both platforms, we can provide tailored solutions that maximize success for any antigen, from difficult-to-target non-immunogenic molecules to well-characterized targets requiring high specificity.

When to use Phage Display?

For rabbit antibody development using phage display, it’s essential to consider two scenarios:

  • Naïve SFRab™ Library: Ideal for projects needing rapid turnaround or when immunization isn’t feasible (e.g., toxic, non-immunogenic, or novel antigens). With this fully animal-free library, screening is swift and straightforward.
  • Immune Library: When immunization is possible, an immune library becomes invaluable. While immune libraries may have reduced diversity, they provide a highly specific selection of antibodies against a particular antigen. The antibodies generated through this method often demonstrate exceptional affinity and developability, thanks to in vivo affinity maturation.

When to use single B cell screening?

Single B cell screening is the method of choice for generating rabbit antibodies with high affinity and specificity. This technology isolates B cells from an immunized rabbit based on affinity to the target antigen, resulting in natural VH/VL pairing and optimized developability.
At ProteoGenix, we consider this approach ideal for diagnostic antibody development against known targets. That’s why our diagnostic antibody services with single B cell screening come with an “Application Guaranteed” performance warranty.

Criteria Single B Cell Screening Phage Display – Naïve Library Phage Display – Immune Library
Affinity +++ + +++
Diversity ++ +++ ++
Specificity +++ + +++
Developability +++ + ++
Use of Rabbits Yes No Yes
Turnaround time ++ + (fastest) +++
Budget ++ + (less expensive) +++
Applications For diagnostics and therapeutics - Ideal for diagnostics with “Application Guaranteed” package Suitable for non-immunogenic/toxic targets or short timelines For diagnostics and therapeutics - Optimized for therapeutic use to discover a large number of binders

Which applications do we guarantee?

ELISA
Sandwich ELISA
Western Blot
Flow cytometry
Immuno fluorescence
Immuno precipitation
Immuno histochemistry

Case Study: Real results from rabbit monoclonal antibody development

With multiple rabbit antibody development platforms, ProteoGenix addresses diverse project needs. For a closer look at our approach to custom rabbit antibody development via phage display or single B cell screening, download our two case studies below. These reports include:

  • Project description
  • Strategy used for antibody generation
  • Complete set of project results
  • Case report

    Rabbit single B cell screening on protein antigen

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  • Case report

    Phage display screening on protein antigen

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Step Details Timeline Deliverables
Rabbit Immunization Antigen validation by SDS-Page; immunization with our RocketAbs protocol; bleedings, serum titer tests 29-43 days
Single B-cell Sorting & Screening PBMCs and spleen lymphocyte isolation, single B-cell sorting by FACS, B-cell cultivation, screening 2-3 weeks Up to 30 supernatant samples
Recombinant Rabbit Antibody Production Sequence top clones, transient expression, ELISA screening 2 weeks Up to 10 supernatant samples, report, amino acid sequences of top clones
Step Naïve Library Immune Library Timeline Deliverables
Rabbit Immunization x 29-43 days
PBMC Isolation x 1 week
PCR Amplification x 1 week
Library Construction x 1-2 weeks Final report Library kept by ProteoGenix for further screening service or transfer to customer with full intellectual property
Library Screening (4-6 rounds of library panning) x x
Screening & validation by ELISA x x
Phage DNA extraction + antibody sequencing x x 4-5 weeks from library screening to antibody sequencing Final report DNA sequence of the best binder Full ownership of the sequences

FAQ on our custom rabbit monoclonal antibody services

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