ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,531, issued on Sept. 23, was assigned to ASYMCHEM LABORATORIES (FUXIN) Co. LTD. (Liaoning, China).

"Transaminase mutant and use thereof" was invented by Hao Hong (Morrisville, N.C.), Gage James (Morrisville, N.C.), Yi Xiao (Tianjin, China), Fang Liu (Tianjin, China), Na Zhang (Tianjin, China), Zujian Wang (Tianjin, China), Junjie Yan (Tianjin, China), Wanming Shi (Tianjin, China), Mujiao Zhang (Tianjin, China) and Ye Liu (Tianjin, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An amino acid sequence of the transaminase mutant is an amino acid sequence obtained by a mutation of an amino acid sequence is shown in SEQ ID NO: 1. The mutation occu...