Specificity: Specific for somatostatin. A hormone involved in endocrine system regulation through interactions with pituitary growth hormone, thyroid stimulating hormone, and a number of hormones of the gastrointestinal tract. Somatostatin has active 14 amino acid and 28 amino acid forms, produced by alternate cleavage of the gene product. This antibody does not cross react with enkephalins, other endorphins, substance P, or CGRP. It partially Reacts with somatostatin fragments. The epitope recognized by this antibody lies within the 1-14 amino acid sequence of cyclic somatostatin