Target intelligence / Profile preview

Gap Junction Protein Connexin Family (Cx)

Target: Cx
Molecular classification: Transmembrane protein, Gap junction channel protein, Channel protein

Overview

The gap junction protein connexin family comprises a group of structurally related transmembrane proteins that assemble to form gap junctions. These junctions allow direct communication between adjacent cells by permitting the passage of ions and small molecules. Connexins play essential roles in tissue homeostasis, development, and various signaling pathways. Mutations in connexin genes are associated with several diseases, including hearing loss, skin disorders, and cardiovascular defects.

Other names: ConnexinsGap junction proteinsGJAGJBGJCGJDGJE

Mechanism of action

Modulation of gap junction channel activity (opening or closing).

Biological functions

Intercellular communicationDirect electrical couplingMetabolic couplingTissue homeostasisDevelopmentGrowth controlCell differentiationSignaling pathwaysSynaptic transmissionHormone-receptor signalingCell death regulation

Disease associations

Hearing lossSkin disorders (e.g., erythrokeratodermia variabilis et progressiva)Cardiovascular defects

Safety considerations

Potential for off-target effects due to the broad expression and diverse roles of connexins.Altered connexin expression or function can have pleiotropic effects on tissue homeostasis and development.Immune rejection of cells expressing non-native connexins.Potential for unintended consequences on cell signaling and cell death pathways.

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