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P4119

Sigma-Aldrich

Polymyxine B sulfate salt

Biotechnology Performance Certified

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About This Item

Formule empirique (notation de Hill):
C55H96N16O13 · 2H2SO4
Numéro CAS:
Poids moléculaire :
1385.61
Numéro CE :
Numéro MDL:
Code UNSPSC :
51101500

Qualité

Biotechnology Performance Certified

Forme

powder

Technique(s)

cell culture | mammalian: suitable

Impuretés

endotoxin, tested

Solubilité

H2O: soluble 50 mg/mL

Spectre d'activité de l'antibiotique

Gram-negative bacteria
Gram-positive bacteria
fungi

Mode d’action

cell membrane | interferes

Température de stockage

2-8°C

Chaîne SMILES 

O=C(C(NC(C(CCN)NC(CCCCC(C)CC)=O)=O)C(C)O)NC(CCN)C(NC(CCNC(C(NC(C(NC(C(CCN)N1)=O)CCN)=O)C(O)C)=O)C(NC(CCN)C(NC(CC2=CC=CC=C2)C(NC(CC(C)C)C1=O)=O)=O)=O)=O.O=S(O)(O)=O

InChI

1S/C48H82N16O13.H2O4S/c1-27(2)24-37-47(76)59-32(11-19-52)41(70)56-31(10-18-51)43(72)61-35(14-22-65)39(68)54-21-13-34(45(74)57-33(12-20-53)44(73)64-38(48(77)63-37)25-28-6-4-3-5-7-28)60-42(71)30(9-17-50)58-46(75)36(15-23-66)62-40(69)29(8-16-49)55-26-67;1-5(2,3)4/h3-7,26-27,29-38,65-66H,8-25,49-53H2,1-2H3,(H,54,68)(H,55,67)(H,56,70)(H,57,74)(H,58,75)(H,59,76)(H,60,71)(H,61,72)(H,62,69)(H,63,77)(H,64,73);(H2,1,2,3,4)

Clé InChI

HNDFYNOVSOOGDU-UHFFFAOYSA-N

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Description générale

Chemical structure: peptide

Application

Polymyxin B sulfate is a strongly cationic cyclic polypeptide antibiotic that is derived from fermentation of Bacilus polymyxa. It is a mixture of B1 and B2 sulfate. The product has been used clinically to treat infections of the urinary tract, meninges and blood stream caused by susceptible strains of Pseudomonas aeruginosa . It also has uses studying multidrug-resistant pathogens, as an immobilized agent for removal of endotoxins, and to induce pore formation in the membranes of cortex cells from excised sorghum roots.

Actions biochimiques/physiologiques

Mode d'action : Le sulfate de polymyxine B se lie à la partie lipide A des lipopolysaccharides bactériens†, ce qui altère la membrane cytoplasmique en induisant la formation de pores suffisamment grands pour provoquer une fuite de nucléotides dans les parois bactériennes. Ceci modifie la perméabilité de la membrane cytoplasmique.

Spectre antimicrobien : Présente une action bactéricide vis-à-vis de la plupart des bacilles à Gram négatif††, notamment E. Coli et la plupart des champignons et des bactéries à Gram positif.

Attention

As supplied, the product should be stored at 2-8°C in the dark. No change was observed in retained samples after three years′ of storage in these conditions. Stock solutions should be sterile filtered and stored at 2-8°C. They are stable at 37°C for 5 days.

Notes préparatoires

Polymyxin B sulfate is soluble in water at 50 mg/mL, producing a very slightly hazy, colorless to yellow solution. It has only minimal solubility in any organic solvent. For example, it has a solubility of 0.115 mg/mL in ethanol. This product is biotechnology performance certified.

Autres remarques

10mu,25mu,50mu
Keep container tightly closed in a dry and well-ventilated place.Keep in a dry place.

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Acute Tox. 4 Oral

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves


Certificats d'analyse (COA)

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Les clients ont également consulté

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Andrea Giacometti et al.
The Journal of antimicrobial chemotherapy, 49(1), 193-196 (2001-12-26)
The efficacy of two polymyxin-like peptides, KFFKFFKFF and IKFLKFLKFL, alone and combined with levofloxacin, was investigated in a rat model of septic shock. Rats were given an ip injection of 2 x 10(10) cfu of Escherichia coli and randomized to
Michael Hogardt et al.
The Journal of antimicrobial chemotherapy, 54(6), 1057-1061 (2004-10-29)
With their potent activity against Gram-negative bacteria, the polymyxins are important alternative antibiotics for cystic fibrosis (CF) patients. A retrospective evaluation of polymyxin activity against 6001 Pseudomonas aeruginosa, 150 Achromobacter xylosoxidans and 506 Stenotrophomonas maltophilia CF isolates was initiated. In
Barbara Valentinis et al.
The Journal of biological chemistry, 280(14), 14264-14271 (2005-01-27)
Polymyxin B is a lipopolysaccharide binding antibiotic used to inactivate potential lipopolysaccharide contaminations when evaluating the activity of different agents on innate immune cells. We report that polymyxin B is able to induce directly in monocyte-derived human dendritic cells (DCs)
Hiroyuki Hirasawa et al.
Blood purification, 34(2), 164-170 (2012-10-26)
Since the introduction of the new pathophysiological concept of pathogen-associated molecular patterns (PAMPS) and alarmins, endotoxin has been recognized as only one of the PAMPS. It is widely accepted that hypercytokinemia plays a pivotal role in the pathophysiology of sepsis.
H Deborah Chen et al.
PLoS genetics, 8(12), e1003060-e1003060 (2013-01-10)
Changes in gene regulatory circuits often give rise to phenotypic differences among closely related organisms. In bacteria, these changes can result from alterations in the ancestral genome and/or be brought about by genes acquired by horizontal transfer. Here, we identify

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