[reaction: see text] The first example of a multivalent heterofunctional inhibitor-adaptor, called "BAIT", is described. This multivalent inhibitor-adaptor is able to capture a "target" receptor (Shiga toxin) through its recognition of one ligand of a heterobivalent headgroup while the other ligand binds to an endogenous "trap" protein (serum amyloid P component, SAP). BAIT showed markedly enhanced inhibition of toxin activity. An efficient synthesis of this multivalent cluster containing heterobifunctional ligands was accomplished by chemical and chemoenzymatic approaches.
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Solomon et al. (2005) studied this question.
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