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Cathelicidin LL-37
Cathelicidin LL-37 is a synthetic cationic antimicrobial peptide derived from the human cathelicidin protein. It consists of a defined amino acid sequence that supports membrane interaction and immune modulation. Supplied as a lyophilized powder for laboratory research.
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Research Applications
Third Party Tested by Freedom Diagnostics
Investigation of antimicrobial activity against bacteria, fungi, and viruses
Analysis of biofilm disruption mechanisms
Evaluation of immune signaling and cytokine modulation
Study of skin barrier function and wound healing
Technical Information
Technical specifications
Product Specifications
Purity
≥95–99% (HPLC)
Appearance
Lyophilized powder
Solubility
Water-soluble
🧊 Storage Requirements
Handling Information
Avoid repeated freeze-thaw cycles
Lyophilized
-20°C
Reconstituted
2–8°C
Related Articles
Peer-reviewed research
NCBI Literature Resources
The human cathelicidin LL-37: a multifunctional peptide involved in infection and inflammation in the lung
2013 • PMID: 15939310
G Sandra Tjabringa, Klaus F Rabe, Pieter S Hiemstra
NCBI Literature Resources
The Human Cathelicidin Antimicrobial Peptide LL-37 as a Potential Treatment for Polymicrobial Infected Wounds
2013 • PMID: 23840194
Allen J Duplantier, Monique L van Hoek
⚠️ Compliance Notice
For laboratory research use only. Not approved for clinical application.
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Support FAQ
Quick answers to common questions
What is LL-37 and how does it work?
LL-37 is part of the body’s natural defense system. It works by:
- Helping kill bacteria, viruses, and other microbes
- Supporting the immune system’s response to infections
- Reducing inflammation in certain situations
- Assisting with wound healing and skin repair
Because of this, it is being studied for infections, immune health, and healing.
How should it be stored?
Store the peptide in the freezer at −20°C for long-term stability.
After mixing it with liquid, keep it in the refrigerator (2–8°C) and use within about 28 days.
Avoid repeated freeze-thaw cycles and protect from light.
Is LL-37 FDA-approved?
No. LL-37 is not FDA-approved for any medical use at this time.
What quantity options are available?
It is usually available in small research vials or kits. Bulk amounts may be available upon
request.