Programmable mycolysins expand the antimicrobial toolkit against mycobacteria

In a timely advance for antimycobacterial biotechnology, Abouhmad et al. engineered modular ‘mycolysins’ that combine mycobacteriophage lysis functions with membrane-active peptides to efficiently breach the mycobacterial envelope and achieve pathogen intracellular killing. Their work opens a route that may accelerate the development of biologics against tuberculosis and nontuberculous mycobacterial diseases.