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V0627

Sigma-Aldrich

Valinomycin

≥98% (TLC), ≥90% (HPLC)

Synonyme(s) :

Cyclo(L-Val-D-HyIva-D-Val-L-Lac-)3: HyIva = α-Hydroxyisovaleric acid, Lac = Lactic acid

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About This Item

Formule empirique (notation de Hill):
C54H90N6O18
Numéro CAS:
Poids moléculaire :
1111.32
Numéro Beilstein :
78657
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352200
ID de substance PubChem :
Nomenclature NACRES :
NA.77

Niveau de qualité

Pureté

≥90% (HPLC)
≥98% (TLC)

Forme

powder

Conditions de stockage

(Keep container tightly closed in a dry and well-ventilated place.)

Couleur

white

Solubilité

DMSO: ≥50 mg/mL
H2O: insoluble

Spectre d'activité de l'antibiotique

Gram-positive bacteria
parasites
viruses

Mode d’action

cell membrane | interferes

Température de stockage

2-8°C

Chaîne SMILES 

CC(C)[C@@H]1NC(=O)[C@H](C)OC(=O)[C@@H](NC(=O)[C@H](OC(=O)[C@@H](NC(=O)[C@H](C)OC(=O)[C@H](NC(=O)[C@H](OC(=O)[C@@H](NC(=O)[C@H](C)OC(=O)[C@H](NC(=O)[C@H](OC1=O)C(C)C)C(C)C)C(C)C)C(C)C)C(C)C)C(C)C)C(C)C)C(C)C

InChI

1S/C54H90N6O18/c1-22(2)34-49(67)73-31(19)43(61)55-38(26(9)10)53(71)77-41(29(15)16)47(65)59-36(24(5)6)51(69)75-33(21)45(63)57-39(27(11)12)54(72)78-42(30(17)18)48(66)60-35(23(3)4)50(68)74-32(20)44(62)56-37(25(7)8)52(70)76-40(28(13)14)46(64)58-34/h22-42H,1-21H3,(H,55,61)(H,56,62)(H,57,63)(H,58,64)(H,59,65)(H,60,66)/t31-,32-,33-,34-,35+,36+,37-,38-,39-,40+,41+,42+/m0/s1

Clé InChI

FCFNRCROJUBPLU-RPUZOQEISA-N

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Description générale

Chemical structure: peptide
Valinomycin is a cyclic peptide, which contains d-valine, d-α-hydroxyvaleric acid, l-valine, and l-lactic acid in the sequential order of cyclo-[(l-Val-d-Hyv-d-Val-l-Lac)3].
Valinomycin, a nonribosomal peptide (NRP), is proposed to have a structure of a 24-membered cyclic peptide cyclo-(d-α-hydroxyisovaleryl-d-valyl-l-lactyl-l-valyl)2. It exhibits antitumor properties and plays a major role as a mitophagy activator. Initially isolated as an antibiotic compound, valinomycin has demonstrated antibacterial activity against Mycobacterium tuberculosis. Moreover, it has been identified as a potent antiviral agent against a wide spectrum of viruses, including human coronavirus, bunyavirus, enterovirus, and flavivirus.

Application

Valinomycin has been used:
  • to equilibrate intracellular pH and extracellular pH of 5 (and 6-)-carboxyfluorescein succinimidyl ester (cFSE) in Escherichia coli strain B23
  • as an ionophore to equilibrate intracellular pH and extracellular pH of lactic acid bacteria (LAB) strains
  • to establish the desired pH for acid-base transition and formation of K+-valinomycin diffusion potential

Actions biochimiques/physiologiques

K+-selective ionophoric cyclodepsipeptide; potassium ionophore which uncouples oxidative phosphorylation, induces apoptosis in murine thymocytes, inhibits NGF-induced neuronal differentiation and antagonizes ET-induced vasoconstriction.
Valinomycin selectively transfers alkali metal ions via biological and synthetic membranes. The formation of a metal ion-peptide complex contributes to this ion-transporting. Valinomycin can create stable complexes with potassium, rubidium, and cesium (K+, Rb+, and Cs+) .

Conditionnement

10MG,25MG,100MG,500MG

Autres remarques

Keep container tightly closed in a dry and well-ventilated place.

Pictogrammes

Skull and crossbones

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Acute Tox. 1 Dermal - Acute Tox. 1 Oral

Code de la classe de stockage

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

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

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Chitosan disrupts membrane permeability of lactic acid bacteria
Pan C, et al.
Journal of Experimental Microbiology and Immunology, 15, 7-14 (2011)
The nonribosomal peptide valinomycin: From discovery to bioactivity and biosynthesis
Huang S, et al.
Microorganisms, 9, 780-780 (2021)
The effect of a fullerene water suspension on the growth, cell viability, and membrane integrity of Escherichia coli B23.
Aquino A, et al.
Journal of Experimental Microbiology and Immunology, 14, 13-20 (2010)
Jun-Ichi Kishikawa et al.
eLife, 9 (2020-07-09)
V-ATPase is an energy converting enzyme, coupling ATP hydrolysis/synthesis in the hydrophilic V1 domain, with proton flow through the Vo membrane domain, via rotation of the central rotor complex relative to the surrounding stator apparatus. Upon dissociation from the V1
Viktor K Jirsa et al.
Brain : a journal of neurology, 137(Pt 8), 2210-2230 (2014-06-13)
Seizures can occur spontaneously and in a recurrent manner, which defines epilepsy; or they can be induced in a normal brain under a variety of conditions in most neuronal networks and species from flies to humans. Such universality raises the

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