NOVEL FAS ANTIGEN DERIVATIVE

摘要

Novel Fas antigen derivatives characterized by containing at least part or the whole of a Fas antigen extracellular region polypeptide which is deficient in at least one of the amino acid residues (except for the cystein residue concerned) ranging from the N-terminal amino acid residue of a Fas antigen polypeptide to the cystein residue that is closest to the N-terminus; a DNA coding for the Fas antigen derivatives; a recombinant DNA molecule containing the sequence of the above DNA; a transformant containing the recombinant DNA molecule introduced thereinto; processes for producing the Fas antigen derivatives; medicines containing the novel Fas antigen derivatives as the active ingredient; and methods of improving the activities and functions of the Fas antigen and so forth.