Melimine acetate
Based on 1 Customer Validation
Melimine acetate is an antimicrobial peptide with broad-spectrum antimicrobial activity against Gram-negative/Gram-positive bacteria, fungi and protozoa. Melimine acetate neutralizes endotoxin activity by interacting with the phosphate groups of lipid A, depolarizes and permeabilizes the cytoplasmic membrane of *Pseudomonas aeruginosa*, and induces bacterial lysis. Melimine acetate exerts additive antiviral effects against H1N1 and MHV-1 when used in combination with RK610. Melimine acetate retains its antimicrobial activity when conjugated to polymer and titanium surfaces. Melimine acetate can be used in infection-related research.
For research use only. We do not sell to patients.
- Formula: C158H290N74O35·xC2H4O2
- Molecular Weight:3786.47 (free base)
-
Storage:
Sealed storage, away from moisture.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
-
Biological Activity
-
Chemical Information
-
Solvent & Solubility
- Protocols
- Purity & Documentation
- References
-
Help & FAQs
Biological Activity
Description
In Vitro
Melimine acetate exhibits no independent antiviral activity against H1N1, MHV-1 or HSV-1; when combined with RK610, it produces an additive effect against H1N1 in MDCK cells and against MHV-1 in A9 cells, while showing no interaction against HSV-1 in Vero cells[1].
Melimine acetate exhibits high cytotoxicity against A9 cells at a concentration of 62.5 μM, and retains cytotoxicity when combined with 1.09 μM RK610; at a concentration of 31.25 μM, either used alone or in combination with 1 μM RK610, it shows no cytotoxicity against MDCK cells[1].
Melimine acetate‑modified soft contact lenses increase the adhesion inhibition rate of Pseudomonas aeruginosa ATCC 9027 and Staphylococcus aureus ATCC 6538 to 80%, and exhibit no cytotoxicity to mammalian ocular cells[2].
Melimine acetate inhibits and kills the growth of Pseudomonas aeruginosa strains 6206, 6294, Paer1 and ATCC 19660, with MIC values ranging from 66 to 132 nM and MBC values ranging from 132 to 528 nM[3].
Melimine acetate dose-dependently neutralizes LPS of Pseudomonas aeruginosa, with a neutralization rate of 71% at 1×100 MIC and 82% at 2×100 MIC[3].
Melimine (66-132 nM) acetate rapidly depolarizes the cytoplasmic membrane of Pseudomonas aeruginosa 6294 within 30 seconds; it permeabilizes the cytoplasmic membrane of Pseudomonas aeruginosa 6294, allowing Sytox Green to start entering the cells at 5 minutes; it induces concentration-dependent release of DNA/RNA from Pseudomonas aeruginosa 6294; and it lyses Pseudomonas aeruginosa 6294 in a concentration-dependent manner[3].
Melimine (66 nM; 30-150 min) acetate permeabilizes the cell membrane of Pseudomonas aeruginosa strain 6294 in 74.8% of cells within 30 minutes[3].
Melimine (66-132 nM; 2-10 min) acetate releases 75% of total cellular ATP at 66 nM and 92% of total cellular ATP at 132 nM from Pseudomonas aeruginosa 6294 within 2 minutes, while the viable cell count decreases by >3.0 log10[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
In Vivo
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
-
Appearance Solid
-
Molecular Weight 3786.47 (free base)
-
Formula C158H290N74O35·xC2H4O2
-
SMILES
O=C([C@@H](N)[C@@H](C)O)N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N1[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(NCC(NCC(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(O)=O)CCCNC(N)=N)=O)CCCNC(N)=N)=O)CCCNC(N)=N)=O)CCCNC(N)=N)=O)=O)=O)CCCNC(N)=N)=O)CCCNC(N)=N)=O)CCCNC(N)=N)=O)CCCNC(N)=N)=O)CCCNC(N)=N)=O)CCCNC(N)=N)=O)CO)=O)C(C)C)=O)CCCNC(N)=N)=O)CCC1)=O)CCCNC(N)=N)=O)CCC(N)=O)=O)CCCCN)=O)CCCNC(N)=N)=O)CCCCN)=O)CC(N)=O)=O)CCCCN)=O)[C@H](CC)C)=O)CC2=CNC3=CC=CC=C23)=O)CO)=O)[C@H](CC)C)=O)CC(C)C
-
Sequence
Thr-Leu-Ile-Ser-Trp-Ile-Lys-Asn-Lys-Arg-Lys-Gln-Arg-Pro-Arg-Val-Ser-Arg-Arg-Arg-Arg-Arg-Arg-Gly-Gly-Arg-Arg-Arg-Arg
-
Sequence Shortening
TLISWIKNKRKQRPRVSRRRRRRGGRRRR
-
Shipping
Room temperature in continental US; may vary elsewhere.
-
Storage
Sealed storage, away from moisture
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Solvent & Solubility
In Vitro:
DMSO : 25 mg/mL (Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Protocols
-
Research Protocol for Infectious Diseases
Infectious-disease experiments test how pathogens interact with host barriers, innate immune receptors, inflammatory signaling, pathogen replication, and tissue injury; pattern-recognition receptors such as TLRs, RIG-I-like receptors, NOD-like receptors, and inflammasomes detect microbial molecules and activate NF-κB, interferon, and cytokine responses. The central hypothesis is that infection severity reflects the balance between pathogen burden and host response: protective inflammation restricts pathogen growth, whereas excessive or mislocalized inflammation contributes to tissue damage and disease phenotype. Unresolved questions include which host pathways are protective versus pathogenic, why some infection models fail to translate to human disease, and which combined readouts best predict clinically relevant infection outcomes.
-
Gram Staining of Tissue Sections
Gram staining of tissue sections is a histochemical technique used to differentiate Gram-positive and Gram-negative bacteria within histological specimens based on differences in bacterial cell wall structure and dye retention, adapted from classical bacteriological Gram staining into tissue-compatible “histological Gram stain” variants. In tissue applications, modifications of the Brown-Hopps and Brown-Brenn methods are commonly used to improve differentiation of microorganisms embedded within host connective tissue and to reduce overstaining or loss of Gram-negative signal, which are known limitations of earlier approaches. The principle relies on crystal violet-iodine complex retention in Gram-positive organisms and subsequent decolorization and counterstaining steps that allow contrast visualization of Gram-negative organisms against tissue background.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Melimine acetate Related Classifications
HY-P5552A Related Classifications
Powered by Bioz