Howard Hughes Medical Institute (HHMI) researches and their colleagues have discovered that escort molecules are required to usher pheromone receptors to the surface of sensory neurons where they are needed to translate chemical cues.
In an interesting twist, the researchers found that the escort molecules belong to a family of proteins, called the major histocompatibility complex (MHC), which plays an important role in the immune system. The researchers speculate that in addition to being escort molecules, the MHC proteins might actively modulate an animal’s response to pheromones. Modulation of pheromone activity might aid in the recognition of other animals.
The studies in mice add “a novel and unexpected layer of complexity to the process of pheromone detection,” the researchers wrote in an article published in the March 7, 2003, issue of the journal Cell. The article was published online on March 4, 2003. The findings also suggest that, similarly, escort molecules, although of a different kind, may be important in smell and taste receptors.
Jim Keeley | Howard Hughes Medical Institute
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