- Actinonin, a naturally occurring antibacterial agent, is a potent deformylase inhibitor. Chen, D.Z., Patel, D.V., Hackbarth, C.J., Wang, W., Dreyer, G., Young, D.C., Margolis, P.S., Wu, C., Ni, Z.J., Trias, J., White, R.J., Yuan, Z. Biochemistry (2000)