Maleimide Activated Streptavidin

Maleimide Activated Streptavidin is commonly used to facilitate the conjugation of streptavidin to proteins, peptides and ligands containing sulfhydryl (-SH) groups for using it as an enzyme-linked detection reagent. Maleimide Activated Streptavidin is a streptavidin that has been modified by hetero bi-functional cross linker, Sulfo-SMCC and contains several maleimide groups per streptavidin molecule while maintaining the streptavidin binding activity for biotin. After conjugation, the activated streptavidin will form a covalent interaction with the peptides or ligands containing sulfhydryl groups and can be used as a probe for detection in various assays such as ELISA, western blot etc.