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SML1779

Sigma-Aldrich

Nigericin sodium salt

from Streptomyces hygroscopicus, ≥98% (HPLC), solution, polyether ionophore

Synonym(e):

Antibiotic K178, Antibiotic X464, Azalomycin M, Helexin C, Polyetherin A

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1 ML
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About This Item

Empirische Formel (Hill-System):
C40H67NaO11
CAS-Nummer:
Molekulargewicht:
746.94
UNSPSC-Code:
12352200
NACRES:
NA.77

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Produktbezeichnung

Nigericin sodium salt Ready Made Solution, 5 mg/mL (DMSO:ethanol 1:1)

Biologische Quelle

Streptomyces hygroscopicus

Qualitätsniveau

Form

solution

Konzentration

5 mg/mL (DMSO:ethanol 1:1)

Wirkungsspektrum von Antibiotika

Gram-positive bacteria

Wirkungsweise

cell membrane | interferes

Versandbedingung

ambient

Lagertemp.

2-8°C

SMILES String

[Na+].[O-]C(=O)C(C1O[C@H](CC[C@@H]1C)C[C@H]2O[C@]3(OC(CC3C)(C4OC(CC4)(C5O[C@H](C[C@@H]5C)[C@H]6O[C@@]([C@@H](C[C@@H]6C)C)(O)CO)C)C)[C@@H]([C@@H](C2)OC)C)C

InChI

1S/C40H68O11.Na/c1-21-11-12-28(46-33(21)26(6)36(42)43)17-29-18-30(45-10)27(7)40(48-29)25(5)19-38(9,51-40)32-13-14-37(8,49-32)35-23(3)16-31(47-35)34-22(2)15-24(4)39(44,20-41)50-34;/h21-35,41,44H,11-20H2,1-10H3,(H,42,43);/q;+1/p-1/t21-,22-,23-,24+,25?,26?,27+,28+,29+,30+,31+,32?,33?,34-,35?,37?,38?,39-,40+;/m0./s1

InChIKey

MOYOTUKECQMGHE-KKCUGXASSA-M

Biochem./physiol. Wirkung

Nigericin is a polyether ionophore which catalyzes the electroneutral exchange of alkali metal (K+) for H+ (antiport).
Nigericin is a polyether ionophore which catalyzes the electroneutral exchange of alkali metal (K+) for H+ (antiport). Nigericin transports monovalent cations across membranes with the following specificity: K+ >Rb+ >Cs+ >>Na+ and thus, disrupts membrane potential and stimulates ATPase activity in mitochondria.
Nigericin kills bacteria by facilitating the diffusion of ions across membranes.
Low concentration (0.5 μM) of Nigericin rapidly decreases pHi, causing stimulation of PG production 1.5- to 2-fold in cerebral microvascular endothelial cells and arresting of DNA synthesis in Erlich acites carcinoma cells. Treatment of Hela cells, after entry of poliovirus, with nigericin, prevents the inhibition of host protein synthesis by poliovirus. Nigericin is also widely used in studies of the consequences of changes in membrane potential in variable systems.

Angaben zur Herstellung

Nigericin sodium salt ready made solution is provided at 6.7 mM concentration. The solution can be further diluted with a desired solvent to a working concentration (0.5-10 μM).
This product is a 5 mg/mL solution prepared in a 1:1 mixture of DMSO and Ethanol.

Lagerung und Haltbarkeit

The product can be stored at 2-8°C and is released with a 4 years suggested retest schedule. The solution is quite stable refrigerated and freezing is not necessary.

Piktogramme

Flame

Signalwort

Warning

H-Sätze

Gefahreneinstufungen

Flam. Liq. 3

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 2

Flammpunkt (°F)

78.8 °F

Flammpunkt (°C)

26 °C


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Analysenzertifikate (COA)

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Besitzen Sie dieses Produkt bereits?

In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Mayu Sugiyama et al.
Biochimica et biophysica acta, 1660(1-2), 24-30 (2004-02-06)
A novel gene transfer system utilizing polycation liposomes (PCLs), obtained by modifying liposomes with cetyl polyethylenimine (PEI), was previously developed (Gene Ther. 7 (2002) 1148). PCLs show notable transfection efficiency with low cytotoxicity. However, the mechanism of PCL-mediated gene transfer
Hachiro Konaka et al.
The EMBO journal, 42(20), e112573-e112573 (2023-09-04)
Mitochondrial DNA (mtDNA) leakage into the cytoplasm can occur when cells are exposed to noxious stimuli. Specific sensors recognize cytoplasmic mtDNA to promote cytokine production. Cytoplasmic mtDNA can also be secreted extracellularly, leading to sterile inflammation. However, the mode of
A A Guffanti et al.
Journal of general microbiology, 114(1), 201-206 (1979-09-01)
At an external pH of 3.5, nigericin (which catalyses an electroneutral H+/K+ exchange) abolished the transmembrane proton gradient (delta pH) of Bacillus acidocaldarius, causing a rapid acidification of the cytoplasm from approximately pH 6.0 to pH 3.5. A pronounced loss
Michael G Gänzle et al.
Applied and environmental microbiology, 69(2), 1305-1307 (2003-02-07)
The mode of action of reutericyclin was determined with fluorescent dyes that probed the permeability of the cytoplasmic membrane by large molecules, protons, and potassium. A comparison of reutericyclin activity with those of nisin, nigericin, and valinomycin demonstrated that reutericyclin
L B Margolis et al.
Proceedings of the National Academy of Sciences of the United States of America, 86(17), 6626-6629 (1989-09-01)
Acidification of the cytoplasm of Ehrlich ascites carcinoma cells to pH 6.3 arrests DNA synthesis in these cells. Such an effect can be achieved by incubating the cells at pH 6.2 or by adding low concentrations of the K+/H+ antiporter

Questions

  1. How stable is the antibiotic in solution, how long can I store it for? Can I freeze a few aliquots in -80 deg C, or will it cause the chemical to denature?

    1 answer
    1. This product is a 5 mg/mL solution prepared in a 1:1 mixture of DMSO and Ethanol. The product is stored at 2-8°C and is released with a 4 years suggested retest schedule. The solution is quite stable refrigerated and freezing is not necessary. However, the pure powder product (N7143) is stable at -20°C for at least 3 months when dissolved in DMSO or Ethanol. Storage at less than -20°C has not been evaluated. Please see the link below for a sample Certificate of Analysis which includes the recommended retest date:
      https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/SML1779-1ML0000225533.pdf

      Please see the link below to review the product datasheet for the powdered Nigericin, N7143:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/379/493/n7143pis.pdf

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