Murepavadin
Based on 4 publication(s) in Google Scholar
Murepavadin (POL7080), a 14-amino-acid cyclic peptide, is a highly potent, specific antibiotic. Murepavadin exhibits a potent antimicrobial activity for P. aeruginosa with both MIC50 and MIC90 values of 0.12 mg/L. Murepavadin also can target the lipopolysaccharide transport portin D. Murepavadin can be used for the research of bacterial resistance.
It is advisable to consider the stable salt form (Murepavadin TFA) that retains the same biological activity.
For research use only. We do not sell to patients.
- CAS No.: 944252-63-5
- Formula: C73H112N22O16
- Molecular Weight:1553.81
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
Other In-stock Forms of Murepavadin
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Protocols
- Purity & Documentation
- References
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Help & FAQs
Publications Citing Use of MedChemExpress (MCE) Murepavadin
MoreAll Antibiotic Isoforms
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Biological Activity
Description
IC50 & Target
MIC50: 0.12 mg/L(P. aeruginosa)[2] MIC90: 0.12 mg/L(P. aeruginosa)[2] IC50: 5.84 μM (gentamicin)[2]
In Vitro
Murepavadin has activity against P. aeruginosa with MIC50 and MIC90 values both of 0.12 mg/L[2].
Murepavadin inhibits megalin-mediated uptake of gentamicin in vitro with an IC50 value of 5.84 μM[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:murine models of P. aeruginosa infection[2]
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Dosage:0-100 mg/kg
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Administration:Subcutaneous, q24h or q12h
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Result:Resulted in an increase in survival rate to 100% and showed significantly lower CFU levels both in the blood and in the peritoneal fluid at 2 and 10 mg/kg 1 h post-infection.
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Animal Model:Mouse, rat, rabbit, and monkey[2]
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Dosage:0-5 mg/kg
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Administration:Intraperitoneal or subcutaneous, single
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Result:Followed a two-compartment model following intravenous administration and decline of plasma concentrations.
Distributed into the aqueous phase of the body, and systemic plasma clearance (CL) values were similar to the species-specific glomerular filtration rates (GFRs) .
Had high bioavailability (67.79%) after subcutaneous (s.c.) administration in rats but had low oral bioavailability (<0.01%).
Had a linear relationship between ELF AUC and unbound plasma AUC in mouse.
Did not readily cross the blood/brain barrier.
Chemical Information
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CAS No. 944252-63-5
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Molecular Weight 1553.81
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Formula C73H112N22O16
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Synonyms
POL7080
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Sequence
Cyclo(Ala-Ser-{d-Pro}-Pro-Thr-Trp-Ile-{Dab}-{Orn}-{d-Dab}-{Dab}-Trp-{Dab}-{Dab})
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Sequence Shortening
Cyclo(AS-{d-Pro}-PTWI-{Dab}-{Orn}-{d-Dab}-{Dab}-W-{Dab}-{Dab})
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications (4)
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Journal Impact Factor
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Most Recent
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Front Immunol
Murepavadin, a Small Molecule Host Defense Peptide Mimetic, Activates Mast Cells via MRGPRX2 and MrgprB2. [Abstract]2021 Jun 23:12:689410. PMID: 34248979 -
Microbiol Spectr
Murepavadin induces envelope stress response and enhances the killing efficacies of β-lactam antibiotics by impairing the outer membrane integrity of Pseudomonas aeruginosa. [Abstract]2023 Sep 5;11(5):e0125723. PMID: 37668398 -
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J Microbiol Methods
Comparison of agar-based and checkerboard methods to assess phage-antimicrobial synergy in Pseudomonas aeruginosa. [Abstract]2026 Feb 25:107441. PMID: 41759663
Solvent & Solubility
In Vitro
H2O
Peptide Solubility and Storage Guidelines:
1. Calculate the length of the peptide.
2. Calculate the overall charge of the entire peptide according to the following table:
| Contents | Assign value | |
|---|---|---|
| Acidic amino acid | Asp (D), Glu (E), and the C-terminal -COOH. | -1 |
| Basic amino acid | Arg (R), Lys (K), His (H), and the N-terminal -NH2 | +1 |
| Neutral amino acid | Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) | 0 |
3. Recommended solution:
| Overall charge of peptide | Details |
|---|---|
| Negative (<0) |
1. Try to dissolve the peptide in water first. 2. If water fails, add NH4OH (<50 μL). 3. If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide. |
| Positive (>0) |
1. Try to dissolve the peptide in water first. 2. If water fails, try dissolving the peptide in a 10%-30% acetic acid solution. 3. If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO. |
| Zero (=0) |
1. Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first. 2. For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration. |
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Murepavadin Related Classifications
HY-P1674 Related Classifications
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