1. Anti-infection
  2. Bacterial
    Antibiotic
    Fungal
  3. Magainin 2

Magainin 2 (Synonyms: Magainin II)

Cat. No.: HY-P0270 Purity: 99.34%
Handling Instructions

Magainin 2 (Magainin II) is an antimicrobial peptide (AMP) isolated from the skin of the African clawed frog Xenopus laevis. Magainin 2 displays antibiotic activity against numerous gram-negative and gram-positive bacteria. Magainin 2 also is active against protozoa. Magainin 2 exerts its cytotoxicity effects by preferential interactions with anionic phospholipids abundant in bacterial membranes.

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

Custom Peptide Synthesis

Magainin 2 Chemical Structure

Magainin 2 Chemical Structure

CAS No. : 108433-95-0

Size Price Stock Quantity
500 μg USD 108 In-stock
Estimated Time of Arrival: December 31
1 mg USD 192 In-stock
Estimated Time of Arrival: December 31
5 mg USD 768 In-stock
Estimated Time of Arrival: December 31
10 mg USD 1188 In-stock
Estimated Time of Arrival: December 31
50 mg   Get quote  
100 mg   Get quote  

* Please select Quantity before adding items.

Customer Review

Based on 1 publication(s) in Google Scholar

Top Publications Citing Use of Products
  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Magainin 2 (Magainin II) is an antimicrobial peptide (AMP) isolated from the skin of the African clawed frog Xenopus laevis. Magainin 2 displays antibiotic activity against numerous gram-negative and gram-positive bacteria. Magainin 2 also is active against protozoa[1]. Magainin 2 exerts its cytotoxicity effects by preferential interactions with anionic phospholipids abundant in bacterial membranes[2].

In Vitro

Magainin 2 exhibits bactericidal effects and induces morphological changes in Escherichia coli regarding early apoptosis. Magainin 2 induces the expression of a bacterial protein with affinity for the caspase substrate and effects the expression of RecA as a caspase-like protein[1]. Magainin 2 kill bacteria by permeabilizing the cell membranes without exhibiting significant toxicity against mammalian cells. The main target of the peptide is considered to be the lipid matrix of the membranes. Application of 10 μg /mL magainin 2 to Paramecium caudatum, a protozoan, in pond water caused an osmotic swelling of the cell and a subsequent cell burst, suggesting that the peptide could perturb membrane functions responsible for osmotic balance[2]. Magainin 2 permeabilizes bacterial and mammalian membranes in significantly different ways. The peptide forms pores with a diameter of about 2.8 nm (less than 6.6 nm) in B. megaterium, and translocates into the cytosol. In contrast, the peptide significantly perturbes the membrane of CHO-K1 cells, permitting the entry of a large molecule (larger than 23 nm) into the cytosol, accompanied by membrane budding and lipid flip-flop, mainly accumulating in mitochondria and nuclei[3].

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

Molecular Weight

2466.90

Formula

C₁₁₄H₁₈₀N₃₀O₂₉S

CAS No.

108433-95-0

Sequence

Gly-Ile-Gly-Lys-Phe-Leu-His-Ser-Ala-Lys-Lys-Phe-Gly-Lys-Ala-Phe-Val-Gly-Glu-Ile-Met-Asn-Ser

Sequence Shortening

GIGKFLHSAKKFGKAFVGEIMNS

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Protect from light

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

References
Cell Assay
[1]

Escherichia coli cells are incubated with magainin 2 (50 μg /mL). The cultures are acquired after incubation for 0, 2, 4, 6, and 8 h, respectively, and spread onto LB agar plates, and then the colony-forming units are counted after incubation for 24 h at 37°C. The percentage survival is determined relative to the control treatment[1].

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

References
  • No file chosen (Maximum size is: 1024 Kb)
  • If you have published this work, please enter the PubMed ID.
  • Your name will appear on the site.
  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

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

Mass   Concentration   Volume   Molecular Weight *
= × ×

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

Keywords:

Magainin 2Magainin IIMagainin2Magainin-2BacterialAntibioticFungalantimicrobial peptideAMPgram-negativegram-positivebacteriaprotozoa phospholipid cytotoxicitycellInhibitorinhibitorinhibit

Your Recently Viewed Products:

Inquiry Online

Your information is safe with us. * Required Fields.

Product Name

 

Salutation

Applicant Name *

 

Email address *

Phone number *

 

Organization name *

Department *

 

Requested quantity *

Country or Region *

     

Remarks

Bulk Inquiry

Inquiry Information

Product Name:
Magainin 2
Cat. No.:
HY-P0270
Quantity:
MCE Japan Authorized Agent: