KIKIKPWWWPKIKIK-NH2
KIKIKPWWWPKIKIK-NH2 is a β-turn antimicrobial peptide. KIKIKPWWWPKIKIK-NH2 can inhibit bacterial biofilm formation and bind to lipopolysaccharid. KIKIKPWWWPKIKIK-NH2 shows wound-healing ability in mice bacteria-infected full-thickness wound models. KIKIKPWWWPKIKIK-NH2 can be used for the research of bacterial infection.
For research use only. We do not sell to patients.
- Formula: C103H163N25O15
- Molecular Weight:1991.55
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
In Vitro
KIKIKPWWWPKIKIK-NH2 (Compound P-07) (18 h) displays broad-spectrum antimicrobial activity against Gram-positive and Gram-negative bacterial strains (including multidrug-resistant strains) with a geometric mean MIC of 5.00 μM[1].
KIKIKPWWWPKIKIK-NH2 (1 h) has low hemolytic activity against human red blood cells, with an HC10 greater than 256 μM[1].
KIKIKPWWWPKIKIK-NH2 (2-256 μM; 24 h) shows low cytotoxicity against BEAS-2B, HEK-293T, and LO2 human cell lines[1].
KIKIKPWWWPKIKIK-NH2 (8-16 μM; 6 h) exhibits rapid time-dependent bactericidal activity against S. aureus (MDR) and E. coli (MDR)[1].
KIKIKPWWWPKIKIK-NH2 (2-32 μM; 24 h) inhibits biofilm formation by S. aureus (MDR) and E. coli (MDR) in a dose-dependent manner[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
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Cell Line:Human bronchial epithelioid (BEAS-2B), human embryonic kidney (HEK-293T), human hepatic (LO2) cell lines
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Concentration:2, 4, 8, 16, 32, 64, 128, 256 μM
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Incubation Time:24 h
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Result:Exhibited low cytotoxicity against BEAS-2B, HEK-293T, and LO2 cells relative to controls.
In Vivo
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:KM (Male, 6 weeks old, ~20 g, full-thickness wound infected with E. coli ATCC 25922 and MDR E. coli)[1]
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Dosage:100 μM
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Administration:Topical; daily; 11 days
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Result:Significantly reduced bacterial loads of E. coli ATCC 25922 and E. coli (MDR) on wound surfaces compared to controls.
Promoted wound healing, with wounds showing smaller sizes over time and almost complete healing by day 11.
Reduced inflammatory cell infiltration, vascular congestion, and IL-6 expression in treated wounds.
Chemical Information
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Molecular Weight 1991.55
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Formula C103H163N25O15
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Sequence
Lys-Ile-Lys-Ile-Lys-Pro-Trp-Trp-Trp-Pro-Lys-Ile-Lys-Ile-Lys-NH2
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Sequence Shortening
KIKIKPWWWPKIKIK-NH2
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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.
Protocols
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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.
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Fungal Biofilm Culture
Fungal biofilm culture is an in vitro method for growing surface-attached fungal communities, most commonly Candida albicans, on abiotic substrates such as polystyrene wells, silicone elastomer, or polymethylmethacrylate; the assay models adhesion, proliferation, filamentation, extracellular-matrix-associated maturation, and dispersion. Biofilm output can be read by optical density at 600 nm for adherent biomass, XTT reduction for metabolic activity, CFU recovery for viable attached or dispersed cells, and microscopy for architecture.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)