Macrostomin
Antimicrobial peptide active against Gram-positive bacteria — amphipathic alpha-helix.
Доклинические / механистические данныеLast updated: 2026-05-26 · Reviewed by ASH Editorial Board
Mechanistic Evidence Box
Preclinical / mechanistic- Page type
- Compound profile
- Evidence type
- Antimicrobial peptide active against Gram-positive bacteria — amphipathic alpha-helix.
- Evidence level
- In vitro
- Drug vs leech
- Purified natural compound
Clinical translation limit
Macrostomin's in vitro antimicrobial activity does not establish clinical efficacy as a therapeutic antibiotic. No FDA-approved derivative exists. Mechanism is preclinical/biochemical only.
Molecular Profile
- Category
- Antimicrobial
- Evidence tier
- Preclinical
- Molecular weight
- 2,900 Da
- Source species
- Macrobdella decora
Biological Targets
- → Gram-positive bacterial membranes
External Resources
Related Antimicrobial Compounds
Theromacin
Antimicrobial peptide active against Gram-negative bacteria — innate immunity of leech.
Theromyzin
Antimicrobial peptide; structural analogue of mammalian defensin family.
Hirunipins
Newly-characterized antimicrobial peptide family (Kumar 2025) — candidate next-generation antibiotics against AMR pathogens.
Destabilase Lysozyme Activity
Lysozyme domain of destabilase — antimicrobial activity against peptidoglycan-containing bacteria.