Functional asymmetry of the conserved cystine loops in alphabetagamma GABA A receptors revealed by the response to GABA activation and drug potentiation
Ligand-gated ion channels respond to specific neurotransmitters by transiently opening an integral membrane ion-selective pore, allowing ions to move down their electrochemical gradient. A distinguishing feature of all members of the ligand-gated ion channel superfamily is the presence of a 13-amino acid disulfide loop (Cys-loop) in the extracellular ligand-binding domain. Structural data derived from the acetylcholine receptor place this loop at the interface between the ligand-binding domain...[Show more]
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|Source:||The International Journal of Biochemistry and Cell Biology|
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