Side-by-Side Comparison · 2026

PGLa vs PR-39

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

PGLa
Antimicrobial Peptide

PGLa is a 22-residue alpha-helical antimicrobial peptide co-isolated with magainin-2 from the skin of the African clawed frog Xenopus laevis. Individually, PGLa and magainin-2 show modest antimicrobial activity, but when combined at equimolar ratios, they exhibit synergistic kill...

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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 PGLa 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 PGLa and PR-39?
PGLa: PGLa is a 22-residue alpha-helical antimicrobial peptide co-isolated with magainin-2 from the skin of the African clawed frog Xenopus laevis. Individually, PGLa and magainin-2 show modest antimicrobia... 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, PGLa or PR-39?
PGLa half-life: Minutes (proteolytic). PR-39 half-life: Minutes (proteolytic).
Can you stack PGLa and PR-39?
PGLa 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.