Tuberactinomycin A

Tuberactinomycin A is a basic cyclic peptide antibiotic and a group I intron RNA splicing inhibitor, with an IC₅₀ of 10 μM against the G-binding site of bacteriophage T4 group I intron RNA. Tuberactinomycin A exerts antibacterial effects by acting on the initiation and elongation steps of bacterial bacteria ribosomes to inhibit prokaryotic protein synthesis. Tuberactinomycin A competes with guanosine cofactors for binding to the G-binding site of group I intron RNA, forms electrostatic interactions with the RNA backbone, and inhibits the self-splicing of bacteriophage T4 td and sunY group I introns, and its inhibitory activity depends on Mg²⁺ concentration. Tuberactinomycin A can be used in studies related to bacterial infections^[1]. In Vitro:Tuberactinomycin A (10 μM) potently inhibits self-splicing of the phage T4 td intron and sunY intron with 50% inhibition at 10 μM, making it far more active than earlier identified competitive splicing inhibitors^[1].