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Valinomycin

SIGMA/V0627 - ≥98% (TLC), ≥90% (HPLC)

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

CAS Number: 2001-95-8
Empirical Formula (Hill Notation): C54H90N6O18
Molecular Weight: 1111.32
EC Number: 217-896-6
MDL Number: MFCD00005114
Linear Formula: C54H90N6O18
Product Type: Chemical

Catalog Number PKG Qty. Price Quantity
45-V0627-10MG 10 mg
$107.00
1/EA
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45-V0627-25MG 25 mg
$167.00
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45-V0627-100MG 100 mg
$414.00
1/EA
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45-V0627-500MG 500 mg
$2100.00
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Valinomycin is a cyclododecadepsi-peptide ionophore antibiotic. It is a potassium ionophore that transports K+ across biological and artificial lipid membranes. Valinomycin can induce K+ conductivity in cell membranes, uncouples oxidative phosphorylation and induces apoptosis.

 

antibiotic activity spectrum Gram-positive bacteria
  parasites
  viruses
assay ≥90% (HPLC)
  ≥98% (TLC)
color white
form powder
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
InChI key FCFNRCROJUBPLU-RPUZOQEISA-N
mode of action cell membrane | interferes
Quality Level 300 
SMILES string 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
solubility DMSO: ≥50 mg/mL
  H2O: insoluble
storage condition (Keep container tightly closed in a dry and well-ventilated place.)
storage temp. 2-8°C
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

Biochem/physiol Actions: K+-selective ionophore which uncouples oxidative phosphorylation.
Biochem/physiol Actions: 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.
Biochem/physiol Actions: 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+) .
General description: Chemical structure: peptide
General description: 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].
General description: 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.
Other Notes: Keep container tightly closed in a dry and well-ventilated place.
Packaging: 10MG,25MG,100MG,500MG
Purity ≥90% (HPLC); ≥98% (TLC)
Storage Temp. 2-8°C
UNSPSC 12352200

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