Primary Antibodies, Reagents, and Tools

What are Primary Antibodies?

Primary antibodies can be monoclonal or polyclonal depending on how they are developed. A polyclonal antibody is derived from a collection of B cells and can recognize multiple epitopes on the same antigen. In contrast, a monoclonal antibody is produced from a single B cell and can recognize only one unique epitope.

Primary Antibody Uses

Primary antibodies directly bind to specific antigens in a tissue or sample. They are useful for detecting, measuring and purifying proteins or biomolecules in applications such as ELISA, flow cytometry, immunofluorescence, immunochemistry, western blotting or immunohistochemistry. They can also be conjugated to reporter enzymes or fluorophores to aid detection or quantification of the target proteins.

For research applications, primary antibodies are often used in combination with reagents and buffers. Bio-Rad offers over 8,000 high quality antibodies and reagents to help you achieve your research goals. Browse below by research area, application, product type or target species to find the right primary antibody or reagent for your experiment. Alternatively, you can use the pathways below to find your ideal product.

• Browse by Product TypeUnsure about what reagent you need for your experiments? Our product finder can help you find the optimal reagent.
• Browse by ApplicationFind the best reagents, protocols and tips for your ELISA, Flow Cytometry, IF, IHC and WB experiments in one click.
• Browse by Target SpeciesQuickly search for antibodies detecting your desired protein in your species of interest.

Antibodies by Research Areas

• Innate Immunity AntibodiesAntibodies for studying dendritic cells, macrophages, monocytes, NK cells, complement proteins.
• Immunology AntibodiesAntibodies for innate and adaptive immune cells, including cell surface molecules, receptors, cytokines, chemokines, immune regulation and veterinary antibodies.
• Veterinary AntibodiesVeterinary antibodies & associated conjugates available including livestock, domestic animals, avian, primates.
• Cell Health ProductsAntibodies, kits and reagents to assess viability, proliferation, autophagy and apoptosis to determine the health of your cells.
• Cell Biology AntibodiesAntibodies covering key research areas such as cellular morphology and cellular structures.
• Cancer Research AntibodiesAntibodies, proteins and other reagents for all your cancer research needs.
• Regulated Cell DeathAntibodies and kits for identifying key stages of cell death.
• Microbiology Antibodies, AntigensOur microbiology product range includes primary antibodies and antigens (mostly recombinant) suitable for ELISA and WB.
• Neuroscience AntibodiesAntibodies for myelin basic protein and the highly referenced microglia marker, F4/80.
• Epitope Tag & Reporter ProteinsV5 antibodies, His-6 antibodies, c-myc antibody and DYKDDDDK tag monoclonal antibodies in different pack sizes.
• Stem Cell AntibodiesAntibodies for use in stem cell research in particular hematopoietic, mesenchymal and endothelial stem cells.
• Cell Proliferation AntibodiesAntibodies and kits to detect and measure cell proliferation.
• Biotin Conjugated AntibodiesOur range of biotin conjugated antibodies detect a wide variety of antigens from several species including human, mouse, and rat. We also have biotin conjugated negative control antibodies against rat and mice isotypes. Biotin conjugated antibodies can be used for several applications including flow cytometry, ELISA, western blotting, and immunohistochemistry, and are detected using a labeled streptavidin.
• Infectious Disease AntibodiesInfectious disease research is based on multidisciplinary scientific and diagnostic development work and application workflows, incorporating techniques and knowledge from human medicine via translational model animals to veterinary pathologies.

Validated Antibodies

PrecisionAb Antibodies - Extensively Validated Antibodies for Western Blotting

The western blotting experts at Bio-Rad have joined forces with the antibody experts at Bio-Rad to develop PrecisionAb Antibodies.

These premium antibodies for western blotting provide superior performance and reproducibility to help you produce the highest-quality western blotting data.

Antibodies by Validation Type

Diagnostic Assay Development

Associated Product Areas