Related Experiment Video
Updated: Sep 27, 2025

Selection of Transporter-Targeted Inhibitory Nanobodies by Solid-Supported-Membrane SSM-Based Electrophysiology
Published on: May 3, 2021
Transmembrane anion transport promoted by thioamides
Robert Pomorski1, María García-Valverde2, Roberto Quesada2
1Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw Żwirki i Wigury 101 02-089 Warszawa Poland mchmielewski@chem.uw.edu.pl.
Thioamides are effective hydrogen-bonding groups for creating transmembrane anion transporters. Studies show thioamide-based scaffolds outperform traditional amide transporters in function.
Area of Science:
- Supramolecular Chemistry
- Chemical Biology
- Materials Science
Background:
- Thioamide groups are recognized for their hydrogen-bonding capabilities.
- Developing efficient transmembrane anion transporters is crucial for various biological and chemical applications.
- Carbazole scaffolds offer a rigid platform for molecular design.
Purpose of the Study:
- To investigate the efficacy of thioamide groups as hydrogen-bonding motifs in transmembrane anion transporters.
- To compare the performance of thioamide-based transporters with their parent amide counterparts.
- To demonstrate the utility of a 1,8-di(thioamido)carbazole scaffold.
Main Methods:
- Synthesis of a 1,8-di(thioamido)carbazole scaffold.
- Comparative analysis of hydrogen-bonding interactions.
- Assessment of transmembrane anion transport activity.
Main Results:
- The 1,8-di(thioamido)carbazole scaffold effectively utilizes thioamide groups for anion transport.
- Thioamides exhibit superior performance compared to analogous amide groups in this context.
- The scaffold facilitates active transmembrane anion transport.
Conclusions:
- Thioamide groups are highly effective hydrogen-bonding motifs for designing active transmembrane anion transporters.
- The 1,8-di(thioamido)carbazole scaffold provides a robust platform for superior anion transport.
- This work highlights the potential of thioamides in advancing transporter technology.
Related Concept Videos
Membrane Transporters
Transporters are mainly composed of alpha-helices, built from bundles of ten or more helices traversing the plasma membrane. The solute-binding sites are located midway, where some of the helices are broken or distorted, making space for the binding site through...
Active Transport
Primary active transporters, like Na+, K+ and -ATPase, directly utilize ATP to move ions across the membrane. These transporters play significant roles in various physiological processes. For instance, Na+, K+ and -ATPase maintain...
Pore Transport and Ion-Pair Transport
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...
Secondary Active Transport
Membrane Asymmetry Regulating Transporters
Flippase
Eukaryotic flippases are type-IV P-type ATPases or P4-ATPases belonging to P-type ATPase family proteins that are membrane-bound pumps involved in the ATP-mediated transport of ions and molecules across the membrane. Flippases flip specific phospholipids from the outer to the inner leaflet of a membrane. All P4-ATPases have one...
Transcellular Transport of Solutes

