TY - JOUR AU - Hegedüs, Zsófia AU - Grison, Claire M. AU - Miles, Jennifer A. AU - Rodriguez-Marin, Silvia AU - Warriner, Stuart L. AU - Webb, Michael E. AU - Wilson, Andrew J. TI - A catalytic protein-proteomimetic complex: using aromatic oligoamide foldamers as activators of RNase S. JF - CHEMICAL SCIENCE J2 - CHEM SCI VL - 10 PY - 2019 IS - 14 SP - 3956 EP - 3962 PG - 7 SN - 2041-6520 DO - 10.1039/c9sc00374f UR - https://m2.mtmt.hu/api/publication/30609637 ID - 30609637 N1 - CAPLUS AN 2019:345578(Journal) AB - Foldamers are abiotic mols. that mimic the ability of bio-macromols. to adopt well-defined and organised secondary, tertiary or quaternary structure. Such templates have enabled the generation of defined architectures which present structurally defined surfaces that can achieve mol. recognition of diverse and complex targets. Far less explored is whether this mimicry of nature can extend to more advanced functions of biol. macromols. such as the generation and activation of catalytic function. In this work, we adopt a novel replacement strategy whereby a segment of protein structure (the S-peptide from RNase S) is replaced by a foldamer that mimics an α-helix. The resultant prosthetic replacement forms a non-covalent complex with the S-protein leading to restoration of catalytic function, despite the absence of a key catalytic residue. Thus this functional protein-proteomimetic complex provides proof that significant segments of protein can be replaced with non-natural building blocks that may, in turn, confer advantageous properties. [on SciFinder(R)] LA - English DB - MTMT ER -