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Biological Activity for TPEN
TPEN is a heavy metal chelator. Reacts with both Zn-proteome and Zn-metallothionein (MT) in LLC-PK1 cells; acts as an intracellular chelator of proteomic Zn2+. Activity decreases intracellular zinc levels, and induces apoptosis in HeLa and cultured human retinal pigment epithelium (RPE) cells. Also inhibits RNA binding protein Lin28 (IC50 = 2.5 μM). Cell permeable.
Technical Data for TPEN
|Storage||Store at +4°C|
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Solubility Data for TPEN
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions for TPEN
The following data is based on the product molecular weight 424.54. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||2.36 mL||11.78 mL||23.55 mL|
|5 mM||0.47 mL||2.36 mL||4.71 mL|
|10 mM||0.24 mL||1.18 mL||2.36 mL|
|50 mM||0.05 mL||0.24 mL||0.47 mL|
References for TPEN
References are publications that support the biological activity of the product.
Chimienti et al (2001) Role of cellular zinc in programmed cell death: temporal relationship between zinc depletion, activation of caspases, and cleavage of Sp family transcription factors. Biochem.Pharmacol. 62 51 PMID: 11377396
Rana et al (2008) Zinc binding ligands and cellular zinc trafficking: apo-metallothionein, glutathione, TPEN, proteomic zinc, and Zn-Sp1. J.Inorg.Biochem. 102 489 PMID: 18171589
Matias et al (2010) Validation of TPEN as a zinc chelator in fluorescence probing of calcium in cells with the indicator Fura-2. J.Fluoresc. 20 377 PMID: 19821015
Hyun et al (2001) Depletion of intracellular zinc and copper with TPEN results in apoptosis of cultured human retinal pigment epithelial cells. Invest.Opthalmol.Vis.Sci. 42 460
Wang et al (2018) Small-molecule inhibitors disrupt let-7 oligouridylation and release the selective blockade of let-7 processing by LIN28. Cell Rep. 23 3091 PMID: 29874593
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Keywords: TPEN, TPEN supplier, zinc, zn2+, chelating, chelators, cell, permeable, permeant, heavy, metals, Biochemicals, and, Molecular, Biology, DNA,, RNA, Protein, Synthesis, 4309, Tocris Bioscience
1 Citation for TPEN
Citations are publications that use Tocris products. Selected citations for TPEN include:
Kerns (2018) Zinc ion flux during mammalian sperm capacitation. Nat Commun 9 2061 PMID: 29802294
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