demeclocycline and selenomethylselenocysteine

In this study, application of a dual absorbance/fluorescence assay to a chemical library screen identified several previously unknown inhibitors of mycobacteria. In addition, growth conditions had a significant effect on the activity profile of the library. Some inhibitors such as Se-methylselenocysteine were detected only when screening was performed under nutrient-limited culture conditions as opposed to nutrient-rich culture conditions. We propose that multiple culture condition library screening is required for complete inhibitory profiling and for maximal antimycobacterial compound detection.

Topics: Antitubercular Agents; Cysteine; Drug Evaluation, Preclinical; Mycobacterium; Mycobacterium smegmatis; Organoselenium Compounds; Selenocysteine; Small Molecule Libraries