IMPROVED FC-BINDING PROTEIN AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an Fc-binding protein having excellent affinity to IgG and Fc fusion protein and high stability to alkali, and a method for producing the same.SOLUTION: By replacing an amino acid locating at a specific position out of amino acids constituting an Fc-binding protein to another specific amino acid, an Fc-binding protein improved stability to alkali is obtained.