Cionin is a disulfotyrosyl hybrid of cholecystokinin & gastrin; from the neural ganglion of the protochordate Ciona intestinalis.
Cionin is a disulfotyrosyl hybrid of cholecystokinin and gastrin[1].
[1] A H Johnsen, et al. Cionin: a disulfotyrosyl hybrid of cholecystokinin and gastrin from the neural ganglion of the protochordate Ciona intestinalis. J Biol Chem (IF: 5.16; Q2). 1990 Feb 25;265(6):3054-8. PMID:2303439