Revision 4

#47945Store at -20C

0.66 mg

Cell Signaling Technology

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For Research Use Only. Not for Use in Diagnostic Procedures.

Background

Poly(dA:dT) Sodium Salt, also known as poly(deoxyadenylic-thymidylic) acid sodium salt, is a double-stranded alternating copolymer DNA model with repetitive synthetic sequences of poly(dA-dT):poly(dT-dA). Poly(dA:dT) Sodium Salt plays a role in the innate immune response by binding to pattern recognition receptors (PRRs), which are used by host cells to detect pathogen-associated molecular patterns (PAMPs) (1). This synthetic B-DNA analog can trigger intracellular DNA sensors, such as DDX41, that leads to stimulator of interferon genes (STING) activation, and downstream activation of the transcription factors NF-κB and IRF-3 (2,3). The effect of cytosolic DNA on the innate immune response is particularly important when studying viral infections (1-3).

  1. Chiu, Y.H. et al. (2009) Cell 138, 576-91.
  2. Zhang, Z. et al. (2011) Nat Immunol 12, 959-65.
  3. Wu, J. et al. (2013) Science 339, 826-30.

CAS

86828-69-5

Storage

Store lyophilized at -20ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, store at -20ºC. Aliquot to avoid multiple freeze/thaw cycles.

Directions for Use

Poly(dA:dT) Sodium Salt is supplied as a lyophilized powder. To prevent denaturation, reconstitute in water containing physiological salt concentrations. Working concentrations and length of treatment can vary depending on the desired effect.

Background References

    Cross-Reactivity Key

    H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

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    Revision 4
    #47945

    聚 (dA:dT) 钠盐

    Poly(dA:dT) Sodium Salt: Image 1 Expand Image
    使用 Phospho-STING (Ser366) (D7C3S) Rabbit mAb #8457(上图)、STING (D2P2F) Rabbit mAb #19781(中图)或 STING (D2P2F) Rabbit mAb #13647(下图)对用 TPA (12-O-Tetradecanoylphorbol-13-Acetate) #4174(80 nM,18 小时)分化然后不转染(-)或转染 Poly(dA:dT)(5 ug/mL,3 小时;+)的 THP-1 细胞的提取物进行蛋白质印迹分析。