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Merck

M7402

Sigma-Aldrich

Magainin II

≥97% (HPLC)

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About This Item

Fórmula empírica (notación de Hill):
C114H180N30O29S
Número de CAS:
Peso molecular:
2466.90
Número MDL:
Código UNSPSC:
12352202
ID de la sustancia en PubChem:
NACRES:
NA.32

Nivel de calidad

Análisis

≥97% (HPLC)

espectro de actividad antibiótica

fungi
viruses

Modo de acción

cell membrane | interferes

temp. de almacenamiento

−20°C

cadena SMILES

CC[C@H](C)[C@H](NC(=O)CN)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](Cc2c[nH]cn2)C(=O)N[C@@H](CO)C(=O)N[C@@H](C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](Cc3ccccc3)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](C)C(=O)N[C@@H](Cc4ccccc4)C(=O)N[C@@H](C(C)C)C(=O)NCC(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CO)C(O)=O

InChI

1S/C114H180N30O29S/c1-12-65(7)94(142-88(148)55-119)112(170)124-59-90(150)129-74(38-24-28-45-116)100(158)137-81(51-70-33-19-15-20-34-70)106(164)135-79(49-63(3)4)105(163)138-83(53-72-56-121-62-125-72)107(165)140-85(60-145)110(168)127-67(9)96(154)131-75(39-25-29-46-117)101(159)132-76(40-26-30-47-118)102(160)136-80(50-69-31-17-14-18-32-69)98(156)122-57-89(149)128-73(37-23-27-44-115)99(157)126-68(10)97(155)134-82(52-71-35-21-16-22-36-71)109(167)143-93(64(5)6)111(169)123-58-91(151)130-77(41-42-92(152)153)104(162)144-95(66(8)13-2)113(171)133-78(43-48-174-11)103(161)139-84(54-87(120)147)108(166)141-86(61-146)114(172)173/h14-22,31-36,56,62-68,73-86,93-95,145-146H,12-13,23-30,37-55,57-61,115-119H2,1-11H3,(H2,120,147)(H,121,125)(H,122,156)(H,123,169)(H,124,170)(H,126,157)(H,127,168)(H,128,149)(H,129,150)(H,130,151)(H,131,154)(H,132,159)(H,133,171)(H,134,155)(H,135,164)(H,136,160)(H,137,158)(H,138,163)(H,139,161)(H,140,165)(H,141,166)(H,142,148)(H,143,167)(H,144,162)(H,152,153)(H,172,173)/t65-,66-,67-,68-,73-,74-,75-,76-,77-,78-,79-,80-,81-,82-,83-,84-,85-,86-,93-,94-,95-/m0/s1

Clave InChI

MGIUUAHJVPPFEV-ABXDCCGRSA-N

Categorías relacionadas

Amino Acid Sequence

Gly-Ile-Gly-Lys-Phe-Leu-His-Ser-Ala-Lys-Lys-Phe-Gly-Lys-Ala-Phe-Val-Gly-Glu-Ile-Met-Asn-Ser

Descripción general

Chemical structure: peptide
Magainin II is a member of the antimicrobial peptides family. It is a cationic peptide with Gly-Ile-Gly-Lys-Phe-Leu-His-Ser-Ala-Lys-Lys-Phe-Gly-Lys-Ala-Phe-Val-Gly-Glu-Ile-Met-Asn-Ser amino acid sequence. Magainin II is water soluble and non-hemolytic at its effective and amphiphilic antimicrobial concentrations.

Acciones bioquímicas o fisiológicas

Antibiotic peptide. Magainins are positively charged and amphiphatic. Thought to preferentially bind to anionic phospholipids abundant in bacterial membranes with the formation of dynamic peptide-lipid supramolecular pore and cell permeabilization. Binding to artificial neutral membranes has also been demonstrated.
Magainin II acts as an antibiotic in a variety of organisms. Magainin II exhibits cytotoxic and anti-proliferative effects via pore formation in bladder cancer cells. In mice, it acts as an anti-tumor agent in several cancer cell lines and tumors. Magainin II facilitates lactate dehydrogenase discharge from mammalian cells. It directly interacts with certain cell membranes via amphiphilic α-helix and forms permeable ion channels, which results in depolarization and irreversible cytolysis and finally cell death. At low concentrations, Magainin II retards the growth of bacterial and fungal species and it promotes cytolysis in protozoa.

Otras notas

Lyophilized from 0.1% TFA in H2O

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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A Giacometti et al.
The Journal of antimicrobial chemotherapy, 44(5), 641-645 (1999-12-20)
The in-vitro activity of cecropin P1, indolicidin, magainin II, nisin and ranalexin alone and in combination with nine clinically used antimicrobial agents was investigated against a control strain, Pseudomonas aeruginosa ATCC 27853 and 40 clinical isolates of P. aeruginosa. Antimicrobial
Antitumor activity of the antimicrobial peptide magainin II against bladder cancer cell lines.
Lehmann J
European Urology, 50(1), 141-147 (2006)
Mikyung Han et al.
Biophysical journal, 97(1), 164-172 (2009-07-08)
Magainin, a 23-residue antibiotic peptide, interacts directly with the lipid bilayer leading to cell lysis in a strongly concentration-dependent fashion. Utilizing cryo-electron microscopy, we have directly observed magainin interacting with synthetic DMPC/DMPG membranes. Visual examination shows that visibly unperturbed vesicles
The cytotoxic effect of magainin II on the MDA-MB-231 and M14K tumour cell lines.
Anghel R
BioMed Research International, 2013:831709 (2013)
Kim S Clark et al.
Biochemistry, 50(37), 7919-7932 (2011-08-30)
We previously proposed three hypotheses relating the mechanism of antimicrobial and cytolytic peptides in model membranes to the Gibbs free energies of binding and insertion into the membrane [Almeida, P. F., and Pokorny, A. (2009) Biochemistry 48, 8083-8093]. Two sets

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