Studies on the Entrapment of the Calcium-Activated Photoprotein Obelin and Carbonic Anhydrase in Liposomes and their Interaction with Isolated Adipocytes

protein spectrum (chromogranin A) in the adrenal vesicles. We cannot claim to have seen aromatic neurotransmitters reportedly stored in the octopus salivary gland, but it is very likely that we see choline or N-methylammonium groupings. We are struck by the constant observation of the resonances in the aromatic, class A, region. Are these neurotransmitters ? No matter how the small molecules are stored in the salivary gland they are not stored in the same manner as in the adrenal medulla, for there is no obvious storage protein and no ATP. The origin of the amino acid resonances is also uncertain. They could be due to a store of these compounds or they could arise from protein hydrolysis. If the latter is true, the glands have a very active proteinase, and the proteins have a large concentration of aromatic as opposed to aliphatic amino acids. Finally there is present a small molecule with a pK, below 5, which is not a conventional amino acid. Although it may well not be y-aminobutyric acid, it is a molecule with some features in common with this transmitter.