N-butyryl-L-Homocysteine thiolactone

N-butyryl-L-Homocysteine thio-lactone, an analog of N-butyryl-L-homoserine lactone, is a small diffusible signaling molecule involved in quorum sensing for controlling gene expression and cellular metabolism. It induces violacein expression in C. violaceum mutants usually not able to produce acylhomoserine lactone (AHL), regulating genes like LuxIR family transcriptional regulators.