US Patent Issued to Kao on April 21 for "Mutant filamentous fungus, and method for producing protein using same" (Japanese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,837, issued on April 21, was assigned to Kao Corp. (Tokyo).

"Mutant filamentous fungus, and method for producing protein using same" was invented by Toshiharu Arai (Wakayama, Japan) and Sakurako Ichinose (Wakayama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a mutant filamentous fungus. The method comprises modifications of XYR1 and ACE3 expression in the parent filamentous fungus. The modification of XYR1 is substitution, deletion, insertion, or addition of at least one amino acid residue in a region corresponding to positions 810 to 833 of SEQ ID NO: 1 in a polypeptide that consists of the amino acid sequence of SE...