Among placentals, only pigs have a lysine at the second to last position.
A modified version of this peptide is used to treat Von Willebrand disease. Among placentals, only pigs have a lysine at the second to last position. This was the first neuropeptide shown to play a role in the SCN. Unlike a similar protein, its third residue is phenylalanine. This hormone and its similar counterpart are both synthesized by the magnocellular neuron cells in the paraventricular and supraoptic nucleus of the (*) hypothalamus. Its V1 receptor promotes the vasoconstriction of smooth muscles. Structurally similar to oxytocin and also released by the posterior pituitary gland, it triggers the insertion of aquaporin 2 to increase the permeability of the distal tubule in the nephron. For 10 points, name this hormone that causes the kidney to conserve water to establish water homeostasis.
A modified version of this peptide is used to treat Von Willebrand disease.
ADH [accept anti-diuretic hormone; accept AVP; accept arginine vasopressin ; accept argipressin]