Acetylcholine receptor gating at extracellular transmembrane domain interface: the cys-loop and M2-M3 linker.

Abstract excerpt

Acetylcholine receptor channel gating is a propagated conformational cascade that links changes in structure and function at the transmitter binding sites in the extracellular domain (ECD) with those at a "gate" in the transmembrane domain (TMD). We used Phi-value analysis to probe the relative timing of the gating motions of alpha-subunit residues located near the ECD-TMD interface. Mutation of four of the seven...

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