Structure and function of an acetylcholine receptor

J. Kistler, R. M. Stroud, M. W. Klymkowsky, R. A. Lalancette, R. H. Fairclough

Research output: Contribution to journalArticlepeer-review

166 Scopus citations

Abstract

Structural analysis of an acetylcholine receptor from Torpedo californica leads to a three-dimensional model in which a "monomeric" receptor is shown to contain subunits arranged around a central ionophoretic channel, which in turn traverses the entire 110 A length of the molecule. The receptor extends approximately 15 A on the cytoplasmic side, 55 A on the synaptic side of the membrane. The alpha-bungarotoxin/agonist binding site is found to be approximately 55 A from the entrance to the central gated ion channel. A hypothesis for the mechanism of AcChR is presented which takes into account the structural and kinetic data, which is testable, and which serves as a focus for future studies on the agonist-induced structure change in AcChR.

Original languageEnglish (US)
Pages (from-to)371-383
Number of pages13
JournalBiophysical Journal
Volume37
Issue number1
DOIs
StatePublished - 1982
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biophysics

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