Labels:text | screenshot | black | black and white | font | document OCR: tocin are The genes encoding vasopressin and ox ructure of tightly linked on chromosome 20, The essin and the neurohypophysial hormones vasop bir oxytocin (Fig. 5.5) was elucidated, and tl synthesis completed, by 1954. iuretic Arginine vasopressin (AVP) is the anti ne pig hormone of most mammals, although family uses lysine vasopressin. th The vasopressins are basic molecules w 0, while isoelectric points in the region of pH 9- ential for oxytocin is more neutral. The ring is es role in biological activity. Position 8 plays a key racteristics, determining oxytocic or vasopressor ch sition, the The more basic the amino acid in this p possesses. more vasopressor activity the molecule See also: · Vasopressin · Analogues of Vasopressin · Oxytocin