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Mapping Data
Experiment
  • Experiment
    TEXT-QTL
  • Chromosome
    11
  • Reference
    J:103336 McAllister RD, et al., Susceptibility to anthrax lethal toxin is controlled by three linked quantitative trait loci. Am J Pathol. 2003 Nov;163(5):1735-1741
  • ID
    MGI:3609216
Genes
GeneAlleleAssay TypeDescription
Kif1c reported elsewhere
Ltxs2 resistance/susceptibility
D11Mit88 PCR
D11Mit4 PCR
Ltxs3 resistance/susceptibility
D11Bhm149 PCR
D11Bhm169 PCR
Nos2 reported elsewhere
Notes
  • Experiment
    The anthrax lethal toxin susceptibility locus Kif1cLtxs1 (42 cM, chr11) was further characterized using interval-specific recombinant congenic strains (ISRC). ISRC lines carrying different DBA/2NCr-derived portions of central mouse Chromosome 11 on a BALB/cAnPt genetic background were constructed. The progenitor strain DBA/2NCr is resistant to anthrax lethal toxin whereas progenitor strain BALB/cAnPt is susceptible. ISRC animals were injected intravenously with anthrax lethal toxin at 6- to 12-weeks ofage.

    The DBA/2NCr allele of Kif1cLtxs1 was found to confer partial resistance to anthrax lethal toxin. Two additional resistance loci linked to Kif1c on mouse Chromosome 11 were identified in this study. Ltxs2 (lethal factor toxin susceptibility 2) maps proximal to Kif1c between D11Mit88 (34.5 cM) and D11Mit4 (37 cM). Ltxs3 (lethal factor toxin susceptibility 3) maps distal to Kif1c between D11Bhm149 (44.7 cM) and D11Bhm169 (46.5 cM). DBA/2NCr resistance alleles at Kif1cLtxs1, Ltxs2, and Ltxs3 confer partial resistance to anthrax lethal toxin when acting separately, but DBA/2NCr resistance alleles at all three loci will reconstitute full resistance. Both Ltxs2 and Ltxs3 exhibit dominant resistance to anthrax lethal toxin.

    An attractive candidate gene for Ltxs3 is Nos2 (45.6 cM). Lethal factor is known to inhibit NO production in macrophages and Nos2 knockout mice die sooner from anthrax infection compared to wild type mice. Nos2 macrophage expression also differs significantly between BALB/c and DBA/2 as determined by RT-PCR.

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last database update
04/16/2024
MGI 6.23
The Jackson Laboratory