MDP1 acetate 

MDP1 acetate, a Melittin-derived peptide, alters the integrity of both Gram-positive and Gram-negative bacterial membranes and kills the bacteria via membrane damages. MDP1 acetate has a high-antibacterial activity against multidrug resistant (MDR) and reference strains of S. aureus, E. coli, and P. aeruginosa^[1].

MDP1 acetate exhibits more potent antibacterial activities against S. aureus, E. coli and P. aeruginosa.
Geometric means of MICs for MDP1 is recorded at 4.06 μg/mL (S. aureus), 1.22 μg/mL (E. coli) and 3.75 μg/mL (P. aeruginosa), respectively^[1].
DNA and calcein release and flow cytometry assays indicate a time-dependent antibacterial activity on the examined bacteria affected by MDP1 (10, 5, 2.5, 1.25, 0.625 and 0.312 μg/mL) acetate. Finally, SEM analyses highlights dose- and time-dependent effects of MDP1 acetate on S. aureus and E. coli bacteria by induction of vesicle or pore formation as well as cell lysis^[1].

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

2521.05

C₁₁₃H₂₀₆N₃₄O₃₀

Solid

White to off-white

GIGAVLKVLTTGLPALIKRKRQQ

Room temperature in continental US; may vary elsewhere.

Sealed storage, away from moisture and light, under nitrogen

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

* 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.

• [1]. Akbari R, et al. Action mechanism of melittin-derived antimicrobial peptides, MDP1 and MDP2, de novo designed against multidrug resistant bacteria. Amino Acids. 2018;50(9):1231-1243.  [Content Brief]