Product nameValinomycin from Streptomyces fulvissimus
DescriptionK+ selective ionophore
Biological descriptionK+ selective ionophore. Natural dodecadepsipeptide. Antitumor, antifungal and antibacterial effects. Apoptosis due to caspase independent mechanisms.
Storage instructionsStore at -20°C. Store under desiccating conditions. The product can be stored for up to 12 months.
Solubility overviewSoluble in DMSO to 25 mM and in ethanol to 25 mM
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one week. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Toxic, refer to SDS for further information.
Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Our Abpromise guarantee covers the use of ab120852 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|Functional Studies||Use at an assay dependent concentration.|
ab56889 staining mitodusin2 in MEF1 cells treated with valinomycin from Streptomyces fulvissimus (ab120852), by ICC/IF. Decrease in mitofusin2 expression with increased concentration of withaferin valinomycin from Streptomyces fulvissimus, as described in literature.
The cells were incubated at 37°C for 3h in media containing different concentrations of ab120852 (valinomycin from Streptomyces fulvissimus) in DMSO, fixed with 100% methanol for 5 minutes at -20°C and blocked with PBS containing 10% goat serum, 0.3 M glycine, 1% BSA and 0.1% tween for 2h at room temperature. Staining of the treated cells with ab56889 (10 µg/ml) was performed overnight at 4°C in PBS containing 1% BSA and 0.1% tween. A DyLight 488 goat anti-mouse polyclonal antibody (ab96879) at 1/250 dilution was used as the secondary antibody. Nuclei were counterstained with DAPI and are shown in blue.
This product has been referenced in:
- Kroten MA et al. Cereulide and valinomycin, two important natural dodecadepsipeptides with ionophoretic activities. Pol J Microbiol 59:3-10 (2010). Read more (PubMed: 20568524) »
- Yamada A et al. Differential permeabilization effects of Ca2+ and valinomycin on the inner and outer mitochondrial membranes as revealed by proteomics analysis of proteins released from mitochondria. Mol Cell Proteomics 8:1265-77 (2009). Read more (PubMed: 19218587) »
- Duax WL et al. Molecular structure and mechanisms of action of cyclic and linear ion transport antibiotics. Biopolymers 40:141-55 (1996). Read more (PubMed: 8541445) »