Other G protein-coupled receptors (GPCRs) and ion channels

The designation 'Other G protein-coupled receptors (GPCRs) and ion channels' represents a heterogeneous collection of membrane proteins rather than a single therapeutic target. GPCRs constitute the largest family of cell-surface receptors, characterized by seven transmembrane helices that transduce extracellular signals into intracellular responses via heterotrimeric G proteins (Alexander et al., 2023, British Journal of Pharmacology). Ion channels are pore-forming proteins that regulate the flow of ions across biological membranes, playing fundamental roles in electrical signaling and osmotic balance (Catterall, 2010, Neuron). This category typically serves as a catch-all for proteins that are not classified into major subfamilies like rhodopsin-like GPCRs or voltage-gated sodium channels in specific datasets. Due to the diversity of the proteins included, there is no singular disease association or mechanism of action; instead, the group encompasses a vast array of pharmacological targets involved in everything from sensory perception to cardiovascular regulation. Consequently, drug development and safety assessments must be conducted on an individual protein basis rather than for the category as a whole.

Other names

Other GPCRsMiscellaneous ion channels

Varies by specific protein; includes agonism, antagonism, and channel modulation.