1. Anti-infection
  2. Bacterial
  3. LL-37, human acetate

LL-37, human acetate is a 37-residue, amphipathic, cathelicidin-derived antimicrobial peptide, which exhibits a broad spectrum of antimicrobial activity. LL-37, human acetate could help protect the cornea from infection and modulates wound healing.

For research use only. We do not sell to patients.

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LL-37, human acetate

LL-37, human acetate Chemical Structure

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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 2 publication(s) in Google Scholar

Other Forms of LL-37, human acetate:

Top Publications Citing Use of Products
  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

LL-37, human acetate is a 37-residue, amphipathic, cathelicidin-derived antimicrobial peptide, which exhibits a broad spectrum of antimicrobial activity. LL-37, human acetate could help protect the cornea from infection and modulates wound healing[1][2][3].

In Vitro

LL-37, human acetate (1-20 μg/mL; 24 h) affects HCECs migration[2].
LL-37, human acetate (0.0001-5 μg/mL;6-24 h) affects cytokine secretion in HCECs[2].
LL-37, human acetate (1-100 μg/mL; 24 h) shows dose-dependently cytotoxic to HCECs at concentrations over 10 μg/mL[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Migration Assay [2]

Cell Line: Human corneal epithelial cell (HCEC)
Concentration: 1, 2.5, 5, 10 and 20 μg/mL
Incubation Time: 24 hours
Result: Dose-dependently stimulated HCEC migration but showed no effect on cells proliferation.

Cell Viability Assay[2]

Cell Line: Human corneal epithelial cell (HCEC)
Concentration: 0.0001, 0.001, 0.01, 0.1, 0.5, 1, and 5 μg/mL
Incubation Time: 6 and 24 hours
Result: Dose-dependently increased IL-8, IL-6, IL-1β and TNF-α secretion at 6 and 24 hours in HCEC.
In Vivo

LL-37, human acetate (0.4-2.0 mg/kg; intratracheal injection once) ameliorates MRSA-induced pneumonia of mice[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: 6-8 week-old C57BL/6 mice with MRSA-induced pneumonia[3]
Dosage: 0.4, 0.8, 1.2, 1.6 and 2.0 mg/kg
Administration: Intratracheal injection; 0.4-2.0 mg/kg once
Result: Decreased IL-6 and TNF-α release to attenuated MRSA-induced pneumonia of testing mice.
Molecular Weight

4492.28

Formula

C205H341N61O52

Appearance

Solid

Color

White to off-white

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

Sequence Shortening

LLGDFFRKSKEKIGKEFKRIVQRIKDFLRNLVPRTES

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Sealed storage, away from moisture and light, under nitrogen

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen)

Solvent & Solubility
In Vitro: 

H2O : 100 mg/mL (22.26 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.2226 mL 1.1130 mL 2.2260 mL
5 mM 0.0445 mL 0.2226 mL 0.4452 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
H2O 1 mM 0.2226 mL 1.1130 mL 2.2260 mL 5.5651 mL
5 mM 0.0445 mL 0.2226 mL 0.4452 mL 1.1130 mL
10 mM 0.0223 mL 0.1113 mL 0.2226 mL 0.5565 mL
15 mM 0.0148 mL 0.0742 mL 0.1484 mL 0.3710 mL
20 mM 0.0111 mL 0.0557 mL 0.1113 mL 0.2783 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Product Name:
LL-37, human acetate
Cat. No.:
HY-P1222B
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