• Product nameAnti-ID2 antibody
    See all ID2 primary antibodies
  • Description
    Rabbit polyclonal to ID2
  • Tested applicationsSuitable for: ICC/IF, IHC-P, WBmore details
  • Species reactivity
    Reacts with: Mouse, Human
  • Immunogen

    3 synthetic peptides (Human) conjugated to KLH

  • Positive control
    • WB: Recombinant protein produced in an induced culture of E.coli. ICC/IF: NIH3T3 cells. IHC-P: Human breast adenocarcinoma tissue.



Our Abpromise guarantee covers the use of ab85990 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
ICC/IF 1/200.
IHC-P 1/1000. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
WB 1/1000. Detects a band of approximately 29 kDa (predicted molecular weight: 15 kDa).


  • FunctionID (inhibitor of DNA binding) HLH proteins lack a basic DNA-binding domain but are able to form heterodimers with other HLH proteins, thereby inhibiting DNA binding. ID-2 may be an inhibitor of tissue-specific gene expression.
  • Tissue specificityHighly expressed in early fetal tissues, including those of the central nervous system.
  • Sequence similaritiesContains 1 basic helix-loop-helix (bHLH) domain.
  • Developmental stageFound in most early fetal tissues but not in the corresponding mature tissues.
  • Cellular localizationCytoplasm. Nucleus.
  • Information by UniProt
  • Database links
  • Alternative names
    • bHLHb26 antibody
    • Cell growth inhibiting gene 8 antibody
    • class B basic helix loop helix protein 26 antibody
    • Class B basic helix-loop-helix protein 26 antibody
    • DNA binding protein inhibitor ID 2 antibody
    • DNA binding protein inhibitor ID2 antibody
    • DNA-binding protein inhibitor ID-2 antibody
    • GIG 8 antibody
    • GIG8 antibody
    • Helix loop helix protein ID2 antibody
    • ID2 antibody
    • ID2_HUMAN antibody
    • ID2A antibody
    • ID2H antibody
    • Inhibitor of differentiation 2 antibody
    • Inhibitor of DNA binding 2 antibody
    • Inhibitor of DNA binding 2, dominant negative helix loop helix protein antibody
    • MGC26389 antibody
    see all

Anti-ID2 antibody images

  • IHC image of ID2 staining in Human breast adenocarcinoma formalin fixed paraffin embedded tissue section, performed on a Leica Bond™ 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 ab85990, 1/1000, 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.

  • All lanes : Anti-ID2 antibody (ab85990) at 1/1000 dilution

    Lane 1 : Uninduced (negative control) culture of E.coli
    Lane 2 : Induced culture of E.coli

    anti-Rabbit IgG HRP conjugated at 1/1000 dilution

    Predicted band size : 15 kDa
    Observed band size : 30 kDa (why is the actual band size different from the predicted?)
    Predicted molecular weight of Recombinant ID2:29 kDa (15 kDa + another 14 kDa for the tag).
  • ICC/IF image of ab85990 stained NIH-3T3 cells. The cells were 100% methanol fixed (5 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab85990, 1/200 dilution) overnight at +4°C. The secondary antibody (green) was ab96899, DyLight® 488 goat anti-rabbit IgG (H+L) used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

References for Anti-ID2 antibody (ab85990)

ab85990 has not yet been referenced specifically in any publications.

Product Wall

Abcam guarantees this product to work in the species/application used in this Abreview.
Application Western blot
Sample Mouse Tissue lysate - whole (Heart)
Gel Running Conditions Reduced Denaturing (4-12%)
Loading amount 30 µg
Specification Heart
Blocking step BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C

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Verified customer

Submitted Oct 20 2016

Application Immunohistochemistry (Frozen sections)
Sample Mouse Tissue sections (Embryonic pancreas)
Permeabilization Yes - 1% Triton
Specification Embryonic pancreas
Blocking step Serum as blocking agent for 30 minute(s) · Concentration: 10% · Temperature: 22°C
Fixative Paraformaldehyde

Abcam user community

Verified customer

Submitted May 29 2015