Validated using a knockout cell line

Recombinant Anti-RIP antibody [EPR4689-100] - BSA and Azide free (ab227843)


  • Product name

    Anti-RIP antibody [EPR4689-100] - BSA and Azide free
    See all RIP primary antibodies
  • Description

    Rabbit monoclonal [EPR4689-100] to RIP - BSA and Azide free
  • Host species

  • Tested applications

    Suitable for: WB, Flow Cytmore details
    Unsuitable for: ICC,IHC-P or IP
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Recombinant fragment. The exact sequence is proprietary.
    Database link: Q13546

  • Positive control

    • HeLa cells and cell lysates; Raji cell lysates.
  • General notes

    ab227843 is the carrier-free version of ab178420 This format is designed for use in antibody labeling, including fluorochromes, metal isotopes, oligonucleotides, enzymes.


    Our carrier-free formats are supplied in a buffer free of BSA, sodium azide and glycerol for higher conjugation efficiency.

    Use our conjugation kits  for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

    Ab227843 is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm.

    Maxpar® is a trademark of Fluidigm Canada Inc.

    Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.



Our Abpromise guarantee covers the use of ab227843 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use at an assay dependent concentration. Predicted molecular weight: 75 kDa.
Flow Cyt Use at an assay dependent concentration.

ab199376 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.


  • Application notes
    Is unsuitable for ICC,IHC-P or IP.
  • Target

    • Function

      Essential adapter molecule for the activation of NF-kappa-B. Following different upstream signals (binding of inflammatory cytokines, stimulation of pathogen recognition receptors, or DNA damage), particular RIPK1-containing complexes are formed, initiating a limited number of cellular responses. Upon TNFA stimulation RIPK1 is recruited to a TRADD-TRAF complex initiated by TNFR1 trimerization. There, it is ubiquitinated via 'Lys-63'-link chains, inducing its association with the IKK complex, and its activation through NEMO binding of polyubiquitin chains.
    • Sequence similarities

      Belongs to the protein kinase superfamily. TKL Ser/Thr protein kinase family.
      Contains 1 death domain.
      Contains 1 protein kinase domain.
    • Post-translational

      Proteolytically cleaved by caspase-8 during TNF-induced apoptosis. Cleavage abolishes NF-kappa-B activation and enhances pro-apototic signaling through the TRADD-FADD interaction.
      Autophosphorylated on serine and threonine residues.
      Ubiquitinated by 'Lys-11'-, 'Lys-48'-, 'Lys-63'- and linear-linked type ubiquitin. Polyubiquitination with 'Lys-63'-linked chains by TRAF2 induces association with the IKK complex. Deubiquitination of 'Lys-63'-linked chains and polyubiquitination with 'Lys-48'-linked chains by TNFAIP3 leads to RIPK1 proteasomal degradation and consequently to the termination of the TNF- or Linear polyubiquitinated; the head-to-tail polyubiquitination is mediated by the LUBAC complex. LPS-mediated activation of NF-kappa-B. Also ubiquitinated with 'Lys-11'-linked chains.
    • Cellular localization

    • Information by UniProt
    • Database links

    • Alternative names

      • Cell death protein RIP antibody
      • FLJ39204 antibody
      • OTTHUMP00000039163 antibody
      • Receptor (TNFRSF) interacting serine threonine kinase 1 antibody
      • receptor interacting protein 1 antibody
      • Receptor interacting protein antibody
      • Receptor interacting protein kinase 1 antibody
      • Receptor interacting serine threonine protein kinase 1 antibody
      • Receptor TNFRSF interacting serine threonine kinase 1 antibody
      • Receptor-interacting protein 1 antibody
      • Receptor-interacting serine/threonine-protein kinase 1 antibody
      • Rinp antibody
      • RIP 1 antibody
      • RIP antibody
      • Rip-1 antibody
      • RIP1 antibody
      • RIPK 1 antibody
      • Ripk1 antibody
      • RIPK1_HUMAN antibody
      • Serine threonine protein kinase RIP antibody
      • Serine/threonine-protein kinase RIP antibody
      see all


    • This Flow Cyt data was generated using the same anti-RIP antibody clone, EPR4689-100, in a different buffer formulation (cat# ab178420).

      Flow Cytometric analysis of permeabilized HeLa cells labeling RIP with ab178420 at 1/10 dilution (red) compared with a rabbit IgG negative control (green).

    • This WB data was generated using the same anti-RIP antibody clone, EPR4689-100, in a different buffer formulation (cat# ab178420).

      Lane 1: Wild-type HAP1 cell lysate (20 µg)
      Lane 2: RIP knockout HAP1 cell lysate (20 µg) 
      Lane 3: HeLa cell lysate (20 µg)
      Lane 4: Raji cell lysate (20 µg) 
      Lanes 1 to 4: Merged signal (red and green). Green - ab178420 observed at 78 kDa. Red - loading control, ab8245, observed at 37 kDa.
      ab178420 was shown to specifically react with RIP when RIP knockout samples were used. Wild-type and RIP knockout samples were subjected to SDS-PAGE. ab178420 and ab8245 (loading control to GAPDH) were both diluted 1/1000 and 1/10000 respectively and incubated overnight at 4°C. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) ab216773 and Goat anti-Mouse IgG H&L (IRDye® 680RD) ab216776 secondary antibodies at 1/10000 dilution for 1 h at room temperature before imaging.


    ab227843 has not yet been referenced specifically in any publications.

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