SouthernBiotech founded in 1982 in the United States, specialises in the development and manufacture of high-quality antibodies and immunoreagents with a strong focus on immunology. The portfolio comprises well-characterised primary and secondary antibodies, ELISA kits, recombinant proteins and custom antibody services, developed and produced largely in-house. SouthernBiotech is recognised for thorough validation, consistent performance and expertise in immunoglobulin isotypes and subclasses, supporting reliable and reproducible results in academic, pharmaceutical and biotechnology research.
Portfolio
- Primary and secondary antibodies
- Immunoreagents and antibody conjugates
- ELISA kits and immunoassays
- Recombinant proteins and immunoglobulins
- Custom antibody production services
ApoScreen® Annexin V apoptosis detection kit
This kit enables quantitative evaluation of apoptosis in cell populations by flow cytometry using Annexin V and a viability dye to distinguish live, apoptotic and dead cells. It is widely used in immunology and cell biology research for studies involving cell death, drug treatment effects and immune cell viability.
Key features
- PE-conjugated Annexin V reagent for detection of phosphatidylserine on apoptotic cell surfaces
- Includes 7-aminoactinomycin D (7-AAD) for discrimination of late apoptosis/necrosis
- Designed for use on standard flow cytometers with a 488 nm laser
- Provides 100 tests per kit, suitable for routine apoptosis analysis
Goat F(ab')₂ anti-mouse IgG(H+L), human adsorbed-biotin
This biotinylated secondary antibody provides sensitive and flexible detection in streptavidin-based immunoassays. The F(ab')₂ fragment format and human adsorption help minimise non-specific binding, making it well suited for applications requiring low background and high specificity.
Key features
- Biotin conjugate compatible with streptavidin-based detection systems
- F(ab')₂ fragment reduces Fc receptor-mediated background
- Human adsorbed to minimise cross-reactivity in human samples
- Suitable for ELISA, flow cytometry, immunohistochemistry / immunocytochemistry, western blot, and ELISpot assays
