Splicing variant, as well as a diagnostic method of cancer that was used as an index to the variant of hepcidin

The present invention provides an antibody against the novel splice variants and protein and the protein encoded by the variant of the messenger RNA of hepcidin (mRNA). The present invention also provides a method and diagnostic agent for diagnosing cancer of the presence of the variant and the protein as an index. Nucleic acid fragments exon 2 was deleted in mRNA coding for hepcidin.