Side-by-Side Comparison · 2026

Apidaecin vs PR-39

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

Apidaecin
Antimicrobial Peptide

Apidaecins are proline-rich antimicrobial peptides from the hemolymph of honeybees (Apis mellifera). Unlike membrane-disrupting AMPs, apidaecins kill bacteria exclusively through intracellular ribosome targeting after transporter-mediated uptake, similar to Bac7 and PR-39....

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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 Apidaecin 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 Apidaecin and PR-39?
Apidaecin: Apidaecins are proline-rich antimicrobial peptides from the hemolymph of honeybees (Apis mellifera). Unlike membrane-disrupting AMPs, apidaecins kill bacteria exclusively through intracellular ribosom... 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, Apidaecin or PR-39?
Apidaecin half-life: Minutes (proteolytic). PR-39 half-life: Minutes (proteolytic).
Can you stack Apidaecin and PR-39?
Apidaecin 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.