Biotin-PEG-biotin, MW 2K is an avidin or streptavidin conjugated PEG derivative containing a biotin molecule at each end, which can be used on the surface of biotinylated biomolecules or other materials. The PEG linked to biotin forms an extended spacer arm that enables biotin to enter the binding pocket of the protein.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
