Anti-C Reactive Protein antibody (ab31156)


  • Product nameAnti-C Reactive Protein antibody
    See all C Reactive Protein primary antibodies
  • Description
    Rabbit polyclonal to C Reactive Protein
  • Tested applicationsSuitable for: ELISA, WB, Immunoelectrophoresis, Immunodiffusion, IHC-Pmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Full length native protein (purified) (Human).

  • Positive control
    • This antibody gave a positive result in IHC in the following FFPE tissue: Human normal liver.



Our Abpromise guarantee covers the use of ab31156 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
ELISA Use at an assay dependent concentration.
WB Use at an assay dependent concentration. Predicted molecular weight: 25 kDa.
Immunoturbidimetry: Use at an assay dependent dilution.
Immunoelectrophoresis Use at an assay dependent concentration.
Immunodiffusion Use at an assay dependent concentration.
IHC-P Use at an assay dependent concentration. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.


  • FunctionDisplays several functions associated with host defense: it promotes agglutination, bacterial capsular swelling, phagocytosis and complement fixation through its calcium-dependent binding to phosphorylcholine. Can interact with DNA and histones and may scavenge nuclear material released from damaged circulating cells.
  • Tissue specificityFound in plasma.
  • Sequence similaritiesBelongs to the pentaxin family.
    Contains 1 pentaxin domain.
  • Cellular localizationSecreted.
  • Information by UniProt
  • Database links
  • Alternative names
    • Pentraxin 1, short antibody
    • C reactive protein antibody
    • C reactive protein pentraxin related antibody
    • C-reactive protein(1-205) antibody
    • CRP antibody
    • CRP_HUMAN antibody
    • MGC88244 antibody
    • Pentraxin 1 antibody
    • PTX 1 antibody
    • PTX1 antibody
    see all

Anti-C Reactive Protein antibody images

  • IHC image of C Reactive Protein staining in Human normal liver formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab31156, 5µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

References for Anti-C Reactive Protein antibody (ab31156)

ab31156 has not yet been referenced specifically in any publications.

Product Wall

Thank you for your enquiry.

ab80205 is a recombinant fragment, corresponding to N terminal amino acids 21-130 of Human C Reactive Protein, fused to a His tag, 17kDa (SwissProt ID P02741) so it is a not a full length protein.


Read More
Abcam guarantees this product to work in the species/application used in this Abreview.
Application ELISA
Sample Human Purified protein (human plasma)
Specification human plasma
Blocking step BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 1% · Temperature: 25°C
Type Sandwich (Detection)

Dr. Min Park

Verified customer

Submitted Apr 02 2009