It is an object of the present invention to provide a protein that can successfully treats almost all patients with cedar pollinosis and can be ingested as a food. That is, the present invention provides a protein comprising an amino acid sequence represented by SEQ ID NO:1 or comprising an amino acid sequence having a mutation(s) in said amino acid sequence, and having an immunogenicity of a cedar pollen a polynucleotide encoding said protein a vector comprising said polynucleotide a transformant comprising said polynucleotide or said vector and intended uses of said protein, said polynucleotide, and said transformant.
