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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Curr Opin Chem Biol. 2017 Apr 4;38:80–86. doi: 10.1016/j.cbpa.2017.03.011

Figure 2.

Figure 2

Examples of cell-permeable and biologically active cyclic peptides which were derived from natural sources or rational design and/or combinatorial library screening.