| 摘要 |
This invention provides a novel polypeptide useful in the field of medicines, a novel DNA which encodes the novel polypeptide, a recombinant DNA molecule which contains the novel DNA, a transformant transformed with the novel DNA or the recombinant DNA molecule, a process for the purification of the novel polypeptide, a process for the production of the novel polypeptide, an antibody which recognize the novel polypeptide, an oligonucleotide complementary to the novel DNA and a novel screening method. Particularly this invention provides a novel polypeptide which is Fas ligand or a fragment thereof. This novel polypeptide can be used as an effective ingredient of a medicament for regulating the apoptosis in a living body. This novel polypeptide is obtained by identifying a DNA fragment which encodes the novel polpeptide, transforming a desired host with a recombinant DNA molecule which contains the DNA fragment and purifying the novel polypeptide produced by the resulting transformant. This novel polypeptide has a cytoplasmic domain, a transmembrane domain and extracellular domain and takes part in apoptosis.
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