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Updated: Feb 28, 2026

Expression, Solubilization, and Purification of Eukaryotic Borate Transporters
Published on: March 7, 2019
Semithiobambus[6]uril is a transmembrane anion transporter
Chao Lang1, Amar Mohite, Xiaoli Deng
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China.
Semithiobamburil efficiently transports anions across membranes. This sulfur-containing molecule, unlike other bambusurils, selectively moves anions, altering lipid membranes due to its unique lipophilic properties.
Area of Science:
- Supramolecular Chemistry
- Membrane Transport
- Chemical Biology
Background:
- Bambusuril analogs are known for their anion-binding capabilities.
- Understanding transmembrane anion transport is crucial for biological and chemical applications.
- The lipophilic character of macrocyclic hosts influences their membrane interaction.
Purpose of the Study:
- To investigate the transmembrane anion transport activity of semithiobamburil.
- To compare the transport efficiency of different bambusuril analogs.
- To elucidate the role of lipophilicity in anion transport.
Main Methods:
- Synthesis and characterization of semithiobamburil and related analogs.
- Lipid bilayer experiments to assess transmembrane transport.
- Computational modeling to understand molecular interactions.
Main Results:
- Semithiobamburil demonstrates efficient transmembrane anion transport.
- Only the sulfur-containing analog (semithiobamburil) exhibits significant anion transport, unlike oxygen or nitrogen analogs.
- Selective anion uniport by semithiobamburil leads to lipid membrane polarization.
- Differences in lipophilicity correlate with transport efficiency.
Conclusions:
- Semithiobamburil is a potent transmembrane anion transporter.
- Lipophilicity is a key determinant for bambusuril analogs acting as anion transporters.
- Selective anion transport by semithiobamburil offers potential for membrane modulation applications.
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