Cholecystokinin (CCK) is a hormone originally isolated from porcine intestinal mucosa and described as a linear 33-amino acid peptide containing a sulfated tyrosine, which is essential for its biological activity. It has been found in mammals in both the digestive tract and the central nervous system. Among its multiple biological functions, this hormone stimulates pancreatic exocrine secretion, gallbladder contraction, and intestine motility and may also act as a neurotransmitter/neuromodulator in the central nervous system.
Sincalide also called CCK-8 has a molecular formula of C49H62N10O16S3 , H-Asp-Tyr(SO3H)-Met-Gly-Trp-Met-Asp-Phe-NH2 having an Mw of 1143.27 Dalton.
It is recommended to reconstitute the lyophilized Sincalide in sterile 18MΩ-cm H2O at a concentration of 0.5mg/ml, which can then be further diluted to other aqueous solutions.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.
Greater than 99.0% as determined by RP-HPLC.