LL-37

LL-37 | Human Cathelicidin Peptide for Research

We offer high-purity LL-37, the 37-amino acid C-terminal fragment of the human cathelicidin antimicrobial protein (hCAP18). As a key component of the innate immune system, this peptide is supplied in a lyophilized form to ensure maximum stability and bioactivity for immunology and microbiology research.

LL-37 is a cationic, amphipathic peptide that is a fundamental tool for scientists studying host defense mechanisms. It is used extensively in in-vitro models to investigate microbial membrane interactions, chemotaxis, and immunomodulatory effects on various cell types. Its well-characterized properties make it essential for research into innate immunity, inflammation signaling, and the development of novel research reagents.

Important Notice & Disclaimer

This product is intended for laboratory research purposes only. It is not a food, drug, or cosmetic and is not intended for human or veterinary consumption. By purchasing this product, you agree that you are a qualified researcher or scientist and are purchasing it for in-vitro laboratory use. Any other use is strictly forbidden. Please handle this product in a properly equipped laboratory, using all necessary safety precautions.

LL-37 Properties

• Source: PubChem (CID: 16132442)

• Form: Lyophilized powder

• Unit size: 1mg/vial

• Unit quantity: 1 vial

• Bottle: Vial – Flip top – Sealed

• Vial size: 3ml

• Molecular formula: $C\_205H\_340N\_60O\_53$

• Molecular weight: 4493.3 g/mol

• Sequence: Leu-Leu-Gly-Asp-Phe-Phe-Arg-Lys-Ser-Lys-Glu-Lys-Ile-Gly-Lys-Glu-Phe-Lys-Arg-Ile-Val-Gln-Arg-Ile-Lys-Asp-Phe-Leu-Arg-Asn-Leu-Val-Pro-Arg-Thr-Glu-Ser

• CAS number: 204537-83-3

Storage and Handling

For optimal integrity, it is recommended to store lyophilized LL-37 in a freezer at -20°C. Once reconstituted, the peptide solution should be stored in a refrigerator at 2-8°C and used within a short timeframe. For longer-term storage, aliquot and freeze at -20°C or -80°C. Avoid repeated freeze-thaw cycles.