Vasopressin acetate is a peptide hormone with vasoconstrictive and antidiuretic activities that binds to the vascular arginine vasopressin receptor V1 with Kd values of 1.31 and 1.44 nM in A7r5 rat aortic smooth muscle cells and neonatal rat cardiomyocytes respectively.

N-Valyltryptophan is an incomplete breakdown product of protein catabolism or protein digestion.

p2Ca, a naturally processed peptide that derives from a ubiquitous enzyme, alpha-ketoglutarate dehydrogenase, and is recognized in association with the class I MHC protein, Ld, by a CTL clone (2C).