NOVEL, PHYSIOLOGICALLY ACTIVE POLYPEPTIDES AND PRODUCTION METHOD THEREOF

摘要

A novel polypeptide having the amino acid sequence: wherein X is a hydrogen atom or a methionyl group and Y is a peptide residue consisting of 2-10 amino acid residues of which at least the first two are basic amino acid residues. The polypeptide has high antiviral activity as compared with polipeptide consisting of protein portion of human gamma interferon, and can be produced by cultivating a transformant sigle cell microorganism obtained by transformation with an expression vector with the gene coding for the above-mentioned polypeptide inserted therein so as to the gene can be expressed.