An L-threonine-inducible biosensor derived from the tryptophan-repressed trp promoter of Escherichia coli for high-throughput screening of L-threonine overproducers
Buli Su, Peixuan Lai, Xiong Xiong, Yonghong Wang, Man Li, Honghui Zhu, Ming-Rong Deng
The paper develops an L-threonine-inducible biosensor using E. coli's trp promoter for screening high-producing strains and improves ThrB variants for increased L-threonine production.
bioRxiv · Oct 2, 2026 · PreprintBioengineering