Magainin 1 |
| رقم الكتالوجGC32312 |
Magainin 1 (Magainin I) هو مضاد للميكروبات وببتيد amphipathic معزول عن جلد Xenopus laevis
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 108433-99-4
Sample solution is provided at 25 µL, 10mM.
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Magainin 1 is an antimicrobial peptide discovered in the skin of Xenopus laevis.
Magainin 1 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[1]. Magainin 1 and 2 have a similar amino-acid sequence. Magainin 2 has higher antimicrobial activity than magainin 1[2]. Magainin 1 interacts with acidic lipids through electrostatic interactions followed by hydrophobic interactions to form an amphiphilic helix, inducing the leakage. Magainin 1 induces the leakage of calcein specifically out of negatively-charged vesicles. The peptide binds to bovine brain phosphatidylserine sonicated vesicles according to the Langmuir isotherm with a binding constant of 3.8×105 M-1 and a binding-site number of 0.10 per lipid molecule[3]. Magainin 2 displays antibiotic activity against numerous Gram-negative and Gram-positive bacteria. A similar spectrum of activity is seen on assay of magainin 1[4].
[1]. Matsuzaki K, et al. Magainins as paradigm for the mode of action of pore forming polypeptides. Biochim Biophys Acta. 1998 Nov 10;1376(3):391-400. [2]. Watanabe H, et al. Channel Current Analysis for Pore-forming Properties of an Antimicrobial Peptide, Magainin 1, Using the Droplet Contact Method. Anal Sci. 2016;32(1):57-60. [3]. Matsuzaki K, et al. Magainin 1-induced leakage of entrapped calcein out of negatively-charged lipid vesicles. Biochim Biophys Acta. 1989 May 19;981(1):130-4. [4]. Zasloff M, et al. Magainins, a class of antimicrobial peptides from Xenopus skin: isolation, characterization of two active forms, and partial cDNA sequence of a precursor. Proc Natl Acad Sci U S A. 1987 Aug;84(15):5449-53.
| Cas No. | 108433-99-4 | SDF | |
| Canonical SMILES | Gly-Ile-Gly-Lys-Phe-Leu-His-Ser-Ala-Gly-Lys-Phe-Gly-Lys-Ala-Phe-Val-Gly-Glu-Ile-Met-Lys-Ser | ||
| Formula | C112H177N29O28S | M.Wt | 2409.85 |
| الذوبان | H2O : 100 mg/mL (41.50 mM; Need ultrasonic) | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
||
| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
|
1 mg | 5 mg | 10 mg |
| 1 mM | 0.415 mL | 2.0748 mL | 4.1496 mL |
| 5 mM | 0.083 mL | 0.415 mL | 0.8299 mL |
| 10 mM | 0.0415 mL | 0.2075 mL | 0.415 mL |
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Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
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Quality Control & SDS
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- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 31 reference(s) in Google Scholar.)
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