Streptavidin

Streptavidin with strong biotin affinity for immunoassays, molecular diagnostics and affinity purification workflows

Streptavidin forms one of the strongest non-covalent interactions known in biological systems due to its unparalleled affinity for biotin. Extensively purified and rigorously assayed, this homotetrameric protein exhibits negligible nonspecific binding, enabling robust and reproducible performance in sensitive molecular diagnostics, advanced immunoassays and precision affinity-purification techniques.