Chemistry Department Seminar: Sam H. Gellman, University of Wisconsin – Madison

26 January 2022

Sam H. Gellman (University of Wisconsin – Madison) presents “Foldamers: Extrapolating from Proteins,” on Friday, January 28, 2022 at 3:30pm on Zoom.

Folded biopolymers perform diverse functions in biological systems.  Most of these operations require the biopolymer chain to adopt a specific conformation.  Over the past two decades there has been growing interest in the prospect that biopolymer functions might be recapitulated and perhaps even improved upon with unnatural oligomers that manifest discrete folding preferences.  Such systems are referred to generically as “foldamers”.  This lecture will provide an overview of the goals of this field, and progress toward those goals we have achieved with peptidic oligomers that contain β-amino acid residues, exclusively or in combination with α-amino acid residues (“α/β-peptides”). Recent progress in development of α/β-peptide foldamers for catalysis and for mimicry of polypeptide hormones will be presented. (Shown below is a crystal structure showing an antiviral α/β-peptide (multicolored) bound to its protein target (grey).)

Gellman_crystalstructure

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