stallimycin

Stallimycin (distamycin A) is a natural polypyrrole oligopeptide antibiotic originally isolated from *Streptomyces distallicus*. It is a well-characterized DNA minor groove binding agent with a high preference for AT-rich sequences (typically four to five base pairs). By binding non-covalently to the minor groove, it displaces water molecules and interferes with the binding of transcription factors and the activity of DNA-dependent enzymes, such as RNA and DNA polymerases. Historically developed by Farmitalia, it was marketed topically for the treatment of herpes simplex infections under the name stallimycin. However, due to systemic toxicity and the advent of more effective agents, its clinical use is now largely obsolete, and it is primarily employed as a research tool in molecular biology to study DNA-ligand interactions and as a template for designing sequence-specific DNA-binding drugs.

Brand names

Herperal

Other names

distamycindistamycin Adistallimycin