Major urinary protein 4 (Mup4)

Binds pheromones, likely to displace pheromones complexed to urinary MUPs and transport them to the vomeronasal organ (VNO) where they connect with their adrenal gland (s). MUP4 is highly specific for the male mouse pheromone 2-sec-butyl- 4,5-dihydrothiazole (SBT).

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