Major urinary protein 17 (Mup17)

Major urinary proteins (Mups) bind pheromones, thus stabilize them and let slow release to the air from urine marks. May protect pheromones from oxidation.

May also act as pheromones themselves. In this circumstance, they play a role in the regulation of social behaviors, such as aggression, mating, pup- suckling, territory establishment and dominance (By similarity).