Non disponible en dehors du Royaume-Uni et de l'Irlande

Application

Seleno-L-methionine has been used: in toxicity studies in Japanese Medaka embryosto study its effects on selenium status indicators in pregnant long-tailed macaques (Macaca Fascicularis)to label proteins for single wavelength anomalous dispersion (SAD) phasing

Seleno-L-methionine has been used:as a nonchemical stressor to treat Japanese Medaka fish embryosto label proteins for Single wavelength Anomalous Dispersion (SAD) phasingto study the distribution and inhibition effects of seleno-L-methionine on 4T1 mouse mammary carcinoma

Biochem/physiol Actions

Seleno-L-methionine displays antioxidant activity and has been shown to increase the activity of glutathione peroxidase in endothelial cells. Glutathione peroxidase protects cells from oxidative damage, such as DNA strand breaks, mutations and interference with protein tyrosine-based signaling and other protein functions due to formation of 3-nitrotyrosine, caused by excessive peroxynitrite. Seleno-L-methionine administration to cancer cell lines (MCF-7/S breast carcinoma, DU-145 prostate cancer cells and UACC-375 melanoma) results in apoptotic cell death and aberrant mitosis. These human tumor cell lines exhibited dose-dependent growth inhibition by selenomethionine in the micromolar range (45 to 130μM), while growth inhibition of normal fibroblasts required 1mM selenomethionine.

Seleno-L-Methionine (SeMet) is capable of repressing atopic dermatitis (AD)-like skin lesions. It can also prevent the expression of total immunoglobulin E (IgE) and interleukin 4 (IL-4). It can cause ecotoxicity as it is absorbed by fish through diet.

General description

Seleno-L-Methionine (SeMet), an organic form of selenium is found in Cupriavidus metallidurans.

Other Notes

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. S3132.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.

Packaging

100, 500 mg in glass bottle