To provide a nucleic acid encoding a receptor protein kinase, wherein the
nucleic acid has tandem duplication in a nucleotide sequence of a
juxtamembrane and is useful for diagnosis of leukemia; a polypeptide
encoded by the nucleic acid; an antibody capable of specifically binding
to a region encoded by the nucleic acid having tandem duplication
occurring in a nucleotide sequence of a juxtamembrane; a nucleic acid
capable of specifically binding to the nucleic acid having tandem
duplication occurring in a nucleotide sequence of a juxtamembrane; a
method for detection of the nucleic acid encoding a receptor protein
kinase; and a kit therefor. A nucleic acid encoding a receptor protein
kinase, wherein the nucleic acid has tandem duplication in a nucleotide
sequence of a juxtamembrane; a polypeptide encoded by the nucleic acid;
an antibody capable of specifically binding to the portion of the
polypeptide; a nucleic acid capable of specifically binding to the
nucleic acid; a method for detection of the nucleic acid; and a kit for
detection.
