Cell Signaling Technology
XP Monoclonal Antibody

Product Pathways - NF-kB Signaling

RIP (D94C12) XP® Rabbit mAb #3493

Applications Reactivity Sensitivity MW (kDa) Isotype
W IP IF-IC F H M R Hm Mk Endogenous 78 Rabbit

Applications Key:  W=Western Blotting  IP=Immunoprecipitation  IF-IC=Immunofluorescence (Immunocytochemistry)  F=Flow Cytometry
Reactivity Key:  H=Human  M=Mouse  R=Rat  Hm=Hamster  Mk=Monkey
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

RIP (D94C12) XP® Rabbit mAb detects endogenous levels of total RIP (RIP1) protein. It has not been shown to cross-react with other RIP family members.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Leu190 of human RIP.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines using RIP (D94C12) XP® Rabbit mAb.

Western Blotting

Western Blotting

Western blot analysis of extracts from HeLa cells, untransfected or transfected with human RIP construct, using RIP (D94C12) XP® Rabbit mAb.

Flow Cytometry

Flow Cytometry

Flow cytometric analysis of MCF7 cells using RIP (D94C12) XP® Rabbit mAb (blue) compared to Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (red).


IF-IC

IF-IC

Confocal immunofluorescent analysis of OVCAR8 cells using RIP (D94C12) XP® Rabbit mAb (green). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).

Background

The RIP (receptor-interacting protein) family of serine-threonine kinases (RIP, RIP2, RIP3 and RIP4) are important regulators of cellular stress that can trigger pro-survival and inflammatory responses through the activation of NF-κB as well as pro-apoptotic pathways (1). In addition to the kinase domain, RIP contains a death domain responsible for interaction with the death domain receptor Fas and for the recruitment to TNFR1 through interaction with TRADD (2,3). RIP also interacts with TNF-receptor-associated factors (TRAFs) and can recruit IKKs to the TNFR1 signaling complex via interaction with NEMO leading to IκB phosphorylation and degradation (6,7). Overexpression of RIP induces both NF-κB activation and apoptosis (2,3). Caspase-8 dependent cleavage of the death domain on RIP can trigger the apoptotic activity of RIP (8). RIP-deficient cells show a failure in TNF-mediated NF-κB activation making the cells more sensitive to apoptosis (4,5).

  1. Meylan, E. and Tschopp, J. (2005) Trends Biochem Sci 30, 151-9.
  2. Hsu, H. et al. (1996) Immunity 4, 387-96.
  3. Stanger, B.Z. et al. (1995) Cell 81, 513-23.
  4. Ting, A.T. et al. (1996) EMBO J 15, 6189-96.
  5. Kelliher, M.A. et al. (1998) Immunity 8, 297-303.
  6. Devin, A. et al. (2000) Immunity 12, 419-29.
  7. Zhang, S.Q. et al. (2000) Immunity 12, 301-11.
  8. Lin, Y. et al. (1999) Genes Dev 13, 2514-26.

Application References

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Companion Products

This product is intended for research purposes only. The product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

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