Download MendeleyDe novo design of a hyperstable non-natural protein-ligand complex with sub- angstrom accuracy.
Polizzi, N.F., Wu, Y., Lemmin, T., Maxwell, A.M., Zhang, S.Q., Rawson, J., Beratan, D.N., Therien, M.J., DeGrado, W.F.(2017) Nat Chem 9: 1157-1164
- PubMed: 29168496
- DOI: https://doi.org/10.1038/nchem.2846
- Primary Citation of Related Structures:
5TGW, 5TGY - PubMed Abstract:
Protein catalysis requires the atomic-level orchestration of side chains, substrates and cofactors, and yet the ability to design a small-molecule-binding protein entirely from first principles with a precisely predetermined structure has not been demonstrated. Here we report the design of a novel protein, PS1, that binds a highly electron-deficient non-natural porphyrin at temperatures up to 100 °C. The high-resolution structure of holo-PS1 is in sub-Å agreement with the design. The structure of apo-PS1 retains the remote core packing of the holoprotein, with a flexible binding region that is predisposed to ligand binding with the desired geometry. Our results illustrate the unification of core packing and binding-site definition as a central principle of ligand-binding protein design.
Organizational Affiliation:
Department of Biochemistry, Duke University, Durham, North Carolina 27710, USA.
