Custom PEGylated Proteins

Description

PEGylated Proteins through our custom research service. PEGylated streptavidin is a common reagent we make for our customers. One, two, four or eight streptavidin molecules can be attached to a linear mPEG, linear PEG, 4-arm or 8-arm PEG, respectively. Streptavidin (SAv) is a 52.8 kDa protein. SAv has an extraordinarily high affinity for biotin (also known as vitamin B7 or vitamin H). SAv-biotin binding complex has a dissociation constant (Kd) on the order of 10^-14 mol/L. The binding of biotin to streptavidin is one of the strongest non-covalent interactions known in nature.

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