TPEN is a cell permeable, high-affinity heavy metal (Zn2+>Fe2+>Mn2+) chelator that exhibits low affinity for Mg2+ and Ca2+. The compound is lipid-soluble and has been shown to permeate artificial and natural membranes. Research shows that TPEN induces apoptosis in human and rat thymocytes through DNA fragmentation and Caspace-3 activation. TPEN also induces mitochondrial cytochrome C translocation to the cytosol in human PBL. A recent study has proved this chelator to work in conjunction with the fluorescent probe Fura-2 (sc-202163) in biophysical studies of Ca2+.
Thank you for your question. Unfortunately this is not information we have, but according to the below paper, TPEN has a high affinity for Zn2+ (KD = 0.26 fM).
Aizenman, E., et al. 2002. J Neurochem. 2000 Nov;75: 1878-88. PMID:11032877
Answered by: Tech Service
Date published: 2019-06-03
What is the appearance of the compound?
Asked by: two2igm05
Thank you for your question. TPEN, sc-200131, is in pale yellow to grayish yellow red crystalline/powder form.
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Matias et alMatias et al. (PubMed ID 19821015) confirmed the use of TPEN as a chelator for the biophysical study of calcium in the presence of zinc using Fura-2. -SCBT Publication Review
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