Novel peptides, derivatives thereof, process for producing the same, novel strain producing the same, and antiviral agent comprising the same as active ingredient

摘要

Peptides having, as constitutive amino acids, (1) 4 glutamine residues, 1 glutamic acid residue, 1 serine residue, 2 valine residues, 1 isoleucine residue and 5 leucine residues, and having a 3-hydroxydecanoyl group bonded, via an amide linkage, to the N-terminal leucine residue thereof; (2) 4 glutamine residues, 1 glutamic acid residue, 1 serine residue, 3 valine residues, and 5 leucine residues, and having a 3-hydroxydecanoyl group bonded, via an amide linkage, to the N-terminal leucine residue thereof; or (3) 4 glutamine residues, 1 glutamic acid residue, 1 serine residue, 2 valine residues, 1 isoleucine residue and 5 leucine residues, and having a 3-hydroxydodec-5-enoyl group bonded, via an amide linkage, to the N-terminal leucine residue thereof. The peptides have an antiviral activity. A strain capable of producing the above peptides and belonging to a new species of genus Pseudomonas.