ODN 20844 

ODN 20844, a guanine-modified inhibitory oligonucleotide (INH-ODN), is a TLR7 and TLR9 (Toll-like receptor) inhibitor, and its parent is INH-ODN 2088. ODN 20844 disrupts TLR7- and TLR9-mediated immune cell immune responses. ODN 20844 sequence: 5'-TCCTGGCGc7GGGAAGT-3'^[1].

ODN 20844 (0.01-10 μM, 24 h) can effectively block TLR9-mediated IFN-α release and inhibit IL-6 secretion in human peripheral blood mononuclear cells^[1].
ODN 20844 (0.01-10 μM, 24 h) has better inhibitory effect on imiquimod-induced IL-6 secretion in human B cells than INH-ODN 2088^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

4872.90

1964506-29-3

Solid

Off-white to light yellow

DNA, d(P-thio)(T-C-C-T-G-G-C-G-c7G-G-G-A-A-G-T)

[DNA, d(P-thio)(T-C-C-T-G-G-C-G-c7G-G-G-A-A-G-T)]

Room temperature in continental US; may vary elsewhere.

-20°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

• [1]. Franziska Römmler, et al. Guanine-modified inhibitory oligonucleotides efficiently impair TLR7- and TLR9-mediated immune responses of human immune cells. PLoS One. 2015 Feb 19;10(2):e0116703.  [Content Brief]