Peptide extraction by alkaline treatment is accompanied by rearrangement of the membrane-bound acetylcholine receptor from Torpedo marmorata.

Acetylcholine Animals Chemical Phenomena Chemistry Electric Organ/analysis Electrophoresis, Polyacrylamide Gel Fishes Hydrogen-Ion Concentration Membranes/analysis,ultrastructure Microscopy, Electron Molecular Weight Peptides/isolation & purification Receptors, Cholinergic/isolation & purification

Peptides Receptors, Cholinergic Acetylcholine