Self-Assembly of Fluorinated Sugar Amino Acid Derived α,γ-Cyclic Peptides into Transmembrane Anion Transport

Org Lett. 2017 Nov 3;19(21):5948-5951. doi: 10.1021/acs.orglett.7b02942.

Abstract

Syntheses of fluorinated sugar amino acid derived α,γ-cyclic tetra- and hexapeptides are reported. The IR, NMR, ESI-MS, CD, and molecular modeling studies of cyclic tetra- and hexapeptides showed C2 and C3 symmetric flat oval- and triangular-ring shaped β-strand conformations, respectively, which appear to self-assemble into nanotubes. The α,γ-cyclic hexapeptide (EC50 = 2.14 μM) is found to be a more efficient ion transporter than α,γ-cyclic tetrapeptide (EC50 = 14.75 μM). The anion selectivity and recognition of α,γ-cyclic hexapeptide with NO3- ion is investigated.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acids
  • Anions
  • Molecular Structure
  • Peptides, Cyclic / chemistry*
  • Sugars

Substances

  • Amino Acids
  • Anions
  • Peptides, Cyclic
  • Sugars