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Biochem Genet. 1998 Oct;36(9-10):311-22.

Characterization and expression of the Mx1 gene in wild mouse species.

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  • 1Laboratory of Experimental Animal Science, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan.

Abstract

The mouse Mx1 gene encodes an interferon (IFN)-inducible nuclear protein and confers resistance to influenza virus infection. The standard laboratory mouse strains all carry the Mx1- allele and are susceptible to influenza virus. In this study, several mouse strains established from wild mice were tested to determine their Mx1+ or Mx1- allele status with polymerase chain reaction-restriction fragment length variation (PCR-RFLV), sequence analysis, reverse transcription (RT)-PCR, and immunofluorescence staining. All of the mouse strains originating from wild mice were found uniformly to carry the Mx1+ allele. Therefore, it is conceivable that the Mx1+ allele in wild populations serves a function against some pathogens related to orthomyxoviruses. The PCR-RFLV and sequence analysis allowed us to classify the Mx1+ alleles of the laboratory and wild-origin mouse strains into distinct classes. RT-PCR and immunofluorescence staining demonstrated that the Mx1 transcripts and proteins were induced by IFN-alpha/beta in macrophages from wild mouse species.

PMID:
9919357
[PubMed - indexed for MEDLINE]
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