Abstract
We have examined the context of mouse T-cell receptor gamma (Tcr γ) chain variable (V γ) and constant (Cγ) genes among a panel of geographically isolated species of mice. Our Southern hybridization survey with Cγ reveals that essentially three Cγ genes are found among mouse species extending phylogenetically from inbred mice through the feral species Mus pahari. However, a V γ DNA probe detects three to nine V γ restriction fragment bands among the same group of mice. These results suggest that certain feral mice such as M. pahari, M. platythrix, and M. shortridgei have amplified numbers of V γ genes. Studies of individual mice from these particular species indicate the highly amplified V γ content is not the result of a catastrophic gene duplication or deletion event. We conclude that certain species of mice maintain increased content of V γ presumably for increased diversity in a Tcell response.
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Huppi, K., D'Hoostelaere, L., Kiefer, M. et al. The context of T-cell receptor gamma chain genes among wild mouse species. Immunogenetics 24, 304–308 (1986). https://doi.org/10.1007/BF00395535
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DOI: https://doi.org/10.1007/BF00395535