The present invention relates to mammalian anthrax toxin receptor polypeptides and polynucleotides encoding same as well as related polypeptides and polynucleotides, vectors containing the polynucleotides and polypeptides, host cells containing related polynucleotide molecules, and cells displaying no anthrax toxin receptor on an exterior surface of the cells—minus cell lines and animals. The present invention also relates to methods for identifying molecules that bind the anthrax toxin receptor and molecules that reduce the toxicity of anthrax toxin. Finally, the present invention provides methods for treating human and non-human animals suffering from anthrax.
1. An isolated polypeptide comprising the amino acid sequence defined by SEQ ID NO:2.
2. An isolated polypeptide consisting of the amino acid sequence defined by SEQ ID NO:2, amino acids 27-321 of SEQ ID NO:2, or amino acids 28-320 of SEQ ID NO:2.
3. An isolated polypeptide consisting of the amino acid sequence defined by amino acids 41-227 of SEQ ID NO:2, amino acids 42-222 of SEQ ID NO:2, or amino acids 44-216 of SEQ ID NO:2.
4. The isolated polypeptide of claim 3 wherein the polypeptide consists of the amino acid sequence of amino acids 41-227 of SEQ ID NO:2 or amino acids 42-222 of SEQ ID NO:2.