| abstract |
An object of the present invention is to provide streptolysin O and a method for producing the same, and its use, which are excellent in properties such as antigen activity and heat stability. SOLUTION: A poly from a lysine residue at position 2 to an alanine residue at position 31, a glutamate residue at position 32, a serine residue at position 33, an asparagine residue at position 34 described in SEQ ID NO: 1 A polypeptide comprising an amino acid sequence deleted from the peptide, and from which any amino acid residue from the isoleucine residue at position 465 to the alanine residue at position 472 described in SEQ ID NO: 1 is deleted. 【Selection chart】 None |