Abstract:
We demonstrated covalent cross-linking of two or three protein molecules specifically at the C-terminus by sortase-catalyzed conjugation of recombinant proteins with conformationally rigid-flexible tetraantennary templates, where structure of the antenna is [Gly-Gly-(N-CH2COOH)Gly]nCH2–.
Keywords:bioconjugation, sortase, protein A, oligoglycine, protein homooligomerization.