Optimized Construction of a Yeast SICLOPPS Library for Unbiased Selection of Cyclic Peptides.

DNA-encoded libraries hold great potential for discovering small, cyclized peptides with drug potential. Split-intein circular ligation of peptides and proteins (SICLOPPS) is a well-established method for selection of cyclic peptides targeting specific intracellular components. However, the method has mainly been used in prokaryotic cells.