We investigated the specific pattern of major urinary proteins (MUPs) expression in 3-, 4-, and 12-week old mice of CBA/LacY and C57BL/6JY inbred strains using polyacrylamide gel electrophoresis. Quantitative evaluation of 8 protein fractions A-H with regard to sex, age, and genotype of the animals is presented for the first time. Actual problems of genetic control and neuroendocrine regulation of MUPs expression during ontogenesis are discussed. In the light of current views on MUPs as a key component in intrapopulation information exchange via pheromones, we put forward the idea that the genetically determined structure of the olfactory code of the definitive type is formed at an early ontogenetic stage on the basis of the MUPs combinatorial pattern.
Russian Journal of Developmental Biology – Springer Journals
Published: Aug 13, 2009
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