Related Experiment Video
Updated: Jan 26, 2026

High-throughput Analysis of Mammalian Olfactory Receptors: Measurement of Receptor Activation via Luciferase Activity
Published on: June 2, 2014
Transmembrane H+/Cl- cotransport activity of bis(amido)imidazole receptors
Sopan Valiba Shinde1, Pinaki Talukdar
1Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune 411008, India. ptalukdar@iiserpune.ac.in.
Abstract:
A series of sickle-shaped bis(amido) imidazoles are synthesized for their ion transport studies. Proton-anion binding by the neutral and protonated form of receptors assessed by 1H-NMR titration experiments confirmed better chloride binding by the protonated form of a receptor compared to its neutral form. The transport experiments across unimolecular vesicles (by HPTS and lucigenin assays) confirmed the H+/Cl- symport process under the applied pH gradient conditions. The transporter also allows anion antiport as evident from the studies under symmetrical pH conditions. The ionophoric activity by the mobile carrier mechanism is proved by the U-tube experiment.
Related Concept Videos
Secondary Active Transport
Internal Receptors
Single-pass Transmembrane Proteins
Receptor-mediated Endocytosis
Insertion of Single-pass Transmembrane Proteins in the RER
Integral transmembrane proteins possess transmembrane and extra membrane domains. The transmembrane domains are primarily made of 20-25 hydrophobic amino acids arranged in a helical secondary confirmation. These...
Insertion of Multi-pass Transmembrane Proteins in the RER
The multipass transmembrane proteins are the type IV integral membrane proteins with multiple topogenic sequences determining their spatial arrangement in the ER membrane. Nearly all multipass proteins lack a cleavable signal sequence and use...

