Issue 10, 2015

Aromatic isophthalamides aggregate in lipid bilayers: evidence for a cooperative transport mechanism

Abstract

The synthesis and anion transport properties of a series of transmembrane anion transporters based on an isophthalamide scaffold with phenyl, naphthyl or anthracenyl central rings are reported. Anion transport studies using POPC vesicles, showed that the compounds have Hill coefficients >1. This is indicative of higher order complex formation, evidence that leads us to suggest that the compounds are not functioning solely as mobile carriers but rather that a cooperative transport mechanism is being observed. Fluorescence spectroscopy was used to show that the compounds aggregate in the phospholipid bilayer, which provides evidence that these compounds function as a self-assembled anion-conducting aggregate.

Graphical abstract: Aromatic isophthalamides aggregate in lipid bilayers: evidence for a cooperative transport mechanism

Supplementary files

Article information

Article type
Paper
Submitted
19 Dec 2014
Accepted
20 Jan 2015
First published
30 Jan 2015
This article is Open Access
Creative Commons BY license

Org. Biomol. Chem., 2015,13, 3136-3143

Author version available

Aromatic isophthalamides aggregate in lipid bilayers: evidence for a cooperative transport mechanism

S. N. Berry, N. Busschaert, C. L. Frankling, D. Salter and P. A. Gale, Org. Biomol. Chem., 2015, 13, 3136 DOI: 10.1039/C4OB02631D

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