Amit Choudhary1, Ronald T Raines. 1. Graduate Program in Biophysics, University of Wisconsin-Madison, Madison, WI 53706-1534, USA.
Abstract
Peptide-bond isosteres can enable a deep interrogation of the structure and function of a peptide or protein by amplifying or attenuating particular chemical properties. In this Minireview, the electronic, structural, and conformational attributes of four such isosteres-thioamides, esters, alkenes, and fluoroalkenes-are examined in detail. In particular, the ability of these isosteres to partake in noncovalent interactions is compared with that of the peptide bond. The consequential perturbations provide a useful tool for chemical biologists to reveal new structure-function relationships, and to endow peptides and proteins with desirable attributes.
Peptide-bond isosteres can enable a deep interrogation of the structure and function of a peptide or protein by amplifying or attenuating particular chemical properties. In this Minireview, the electronic, structural, and conformational attributes of four such isosteres-thioamides, n class="Chemical">esters, alkenes, and fluoroalkenes-are examined in detail. In particular, the ability of these isosteres to partake in noncovalent interactions is compared with that of the peptide bond. The consequential perturbations provide a useful tool for chemical biologists to reveal new structure-function relationships, and to endow peptides and proteins with desirable attributes.
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