Side-by-Side Comparison · 2026

Drosocin vs PR-39

Drosocin vs PR-39 — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

Drosocin
Antimicrobial Peptide

Drosocin is a 19-residue O-glycosylated proline-rich antimicrobial peptide from Drosophila melanogaster. It is a key component of the insect immune response triggered by Toll and Imd signaling pathways....

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PR-39
Antimicrobial Peptide

PR-39 is a 39-residue proline- and arginine-rich antimicrobial peptide from porcine neutrophil granules. Unlike classical membrane-disrupting AMPs, PR-39 kills bacteria intracellularly by inhibiting DNA and protein synthesis....

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Key Parameters
Parameter Drosocin PR-39
Category Antimicrobial Peptide Antimicrobial Peptide
Research Preclinical Preclinical
Half-Life Minutes (proteolytic) Minutes (proteolytic)
Typical Dose N/A N/A
Frequency N/A N/A
Route Research only Research only
FDA Status Not approved Not approved

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Frequently Asked Questions
What is the difference between Drosocin and PR-39?
Drosocin: Drosocin is a 19-residue O-glycosylated proline-rich antimicrobial peptide from Drosophila melanogaster. It is a key component of the insect immune response triggered by Toll and Imd signaling pathway... PR-39: PR-39 is a 39-residue proline- and arginine-rich antimicrobial peptide from porcine neutrophil granules. Unlike classical membrane-disrupting AMPs, PR-39 kills bacteria intracellularly by inhibiting D...
Which has a longer half-life, Drosocin or PR-39?
Drosocin half-life: Minutes (proteolytic). PR-39 half-life: Minutes (proteolytic).
Can you stack Drosocin and PR-39?
Drosocin and PR-39 are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.