Qbeads-Streptavidin (Qbeads-STA) is designed as a rapid and simple tool for immunoprecipitation, purification/depletion assay, and other applications. Biotinylated molecules, such as nucleic acids, peptides and proteins can bind to Qbeads-STA easily. By applying magnetic attraction, Qbeads-STA-molecules complex will be temporarily immobilized at tube wall, so the other parts in supernatant can be removed easily and efficiently. The binding capacity of Qbeads-STA is about 12 nmole biotin per mL.

1. Easy to use

2. Fast operation without centrifugation

3. Good magnetism and high hydrophilic

4. Small scale (~ug) to large scale (~mg) protein purification