US Patent Issued to CJ CHEILJEDANG on Feb. 17 for "Isopropylmalate synthase polypeptide variant and a method for producing L-leucine using the same" (South Korean Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,069, issued on Feb. 17, was assigned to CJ CHEILJEDANG Corp. (Seoul, South Korea).

"Isopropylmalate synthase polypeptide variant and a method for producing L-leucine using the same" was invented by Hayun Lee (Seoul, South Korea), Ju Eun Kim (Seoul, South Korea), Jihyun Shim (Seoul, South Korea), Ji Hye Lee (Seoul, South Korea) and Sung Gun Lee (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application relates to: a novel mutant polypeptide having isopropylmalate synthase activity; and a method for producing L-leucine by using same. L-leucine can be produced at high yield by using the mutant polypeptide according to an...