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Rabbit Recombinant Monoclonal Indoleamine 2, 3-dioxygenase antibody - conjugated to Alexa Fluor® 647. Suitable for IHC-P and reacts with Mouse, Rat samples.

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Images

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (AB317668), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (AB317668), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (AB317668), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (AB317668), expandable thumbnail

Key facts

Isotype
IgG
Host species
Rabbit
Conjugation
Alexa Fluor® 647
Excitation/Emission
Ex: 650nm, Em: 665nm
Storage buffer

pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: 68% PBS, 30% Glycerol (glycerin, glycerine), 1% BSA

Form
Liquid
Clonality
Monoclonal

Immunogen

  • The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
IHC-PFlow Cyt
Mouse
Tested
Not recommended
Rat
Tested
Not recommended

Tested
Tested

Species
Mouse
Dilution info
1/100
Notes

Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

Species
Rat
Dilution info
1/100
Notes

Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

Not recommended
Not recommended

Species
Mouse, Rat
Dilution info
-
Notes

-

Target data

Function

Catalyzes the first and rate limiting step of the catabolism of the essential amino acid tryptophan along the kynurenine pathway. Involved in the peripheral immune tolerance, contributing to maintain homeostasis by preventing autoimmunity or immunopathology that would result from uncontrolled and overreacting immune responses. Tryptophan shortage inhibits T lymphocytes division and accumulation of tryptophan catabolites induces T-cell apoptosis and differentiation of regulatory T-cells. Acts as a suppressor of anti-tumor immunity (PubMed:25691885). Limits the growth of intracellular pathogens by depriving tryptophan. Protects the fetus from maternal immune rejection (PubMed:15063630).

Alternative names

Ido, Indo, Ido1, IDO-1

Recommended products

Rabbit Recombinant Monoclonal Indoleamine 2, 3-dioxygenase antibody - conjugated to Alexa Fluor® 647. Suitable for IHC-P and reacts with Mouse, Rat samples.

Key facts

Isotype
IgG
Conjugation
Alexa Fluor® 647
Excitation/Emission
Ex: 650nm, Em: 665nm
Form
Liquid
Clonality
Monoclonal
Immunogen
  • The exact immunogen used to generate this antibody is proprietary information.
Clone number
EPR28349-89
Purification technique
Affinity purification Protein A
Concentration
Loading...

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle, Store in the dark

Notes

Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

Indoleamine 2 3-dioxygenase (IDO) also known as IDO1 is an enzyme involved in the catabolism of tryptophan to kynurenine. It weighs approximately 45 kDa and it is an important target in immunoregulatory processes. IDO is highly expressed in antigen-presenting cells such as dendritic cells and macrophages as well as in various tumor cells where it helps modulate immune responses. This enzyme can also be measured by using assays like IDO ELISA.

Biological function summary

IDO plays a role in immune response regulation by degrading tryptophan an essential amino acid needed for T-cell proliferation. The depletion of tryptophan and the accumulation of its metabolites such as kynurenine cause immunosuppressive effects within the tissue microenvironment. While IDO functions mostly as a standalone enzyme its activity influences the cellular surroundings by altering the balance of local immune reactions.

Pathways

IDO integrates into the tryptophan metabolism pathway and is important in the kynurenine pathway. Through this pathway it maintains immune homeostasis and cell defense mechanisms. Proteins like kynureninase and kynurenine 3-monooxygenase also participate in the same metabolic processes which further extend the effects of tryptophan metabolism on immune cell behavior.

Associated diseases and disorders

IDO is linked with cancer and chronic inflammatory conditions. In cancer elevated IDO expression suppresses anti-tumor immunity aiding tumor cells to evade immune surveillance. It also plays a role in autoimmune disorders by regulating excessive immune activity. During cancer progression IDO often works in conjunction with immune checkpoint proteins like PD-L1 which further enhances its immunosuppressive capabilities within the tumor microenvironment.

Product promise

We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.

In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

4 product images

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (ab317668), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (ab317668)

    Immunohistochemical analysis of paraffin-embedded Mouse liver tissue labeling Indoleamine 2, 3-dioxygenase with ab317668 at 1/100 (5.0 ug/ml) dilution.

    Negative control: no staining on mouse liver. The section was incubated with ab317668 for 60 mins at room temperature (shown in red). Nuclear DNA was labeled with DAPI (shown in blue). The section was then mounted using Fluoromount®. The immunostaining was performed on a Leica Biosystems BOND RX instrument. Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

    Counterstained with DAPI.

    Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 40 mins.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (ab317668), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (ab317668)

    Immunohistochemical analysis of paraffin-embedded Rat epididymis tissue labeling Indoleamine 2, 3-dioxygenase with ab317668 at 1/100 (5.0 ug/ml) dilution.

    Positive staining on rat epididymis. The section was incubated with ab317668 for 60 mins at room temperature (shown in red). Nuclear DNA was labeled with DAPI (shown in blue). The section was then mounted using Fluoromount®. The immunostaining was performed on a Leica Biosystems BOND RX instrument. Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

    Counterstained with DAPI.

    Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 40 mins.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (ab317668), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (ab317668)

    Immunohistochemical analysis of paraffin-embedded Mouse epidydimis tissue labeling Indoleamine 2, 3-dioxygenase with ab317668 at 1/100 (5.0 ug/ml) dilution.

    Positive staining on mouse epididymis. The section was incubated with ab317668 for 60 mins at room temperature (shown in red). Nuclear DNA was labeled with DAPI (shown in blue). The section was then mounted using Fluoromount®. The immunostaining was performed on a Leica Biosystems BOND RX instrument. Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

    Counterstained with DAPI.

    Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 40 mins.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (ab317668), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-Indoleamine 2, 3-dioxygenase antibody [EPR28349-89] (ab317668)

    Immunohistochemical analysis of paraffin-embedded Mouse intestine tissue labeling Indoleamine 2, 3-dioxygenase with ab317668 at 1/100 (5.0 ug/ml) dilution.

    Positive staining on mouse small intestinal secretory epithelial cells. The section was incubated with ab317668 for 60 mins at room temperature (shown in red). Nuclear DNA was labeled with DAPI (shown in blue). The section was then mounted using Fluoromount®. The immunostaining was performed on a Leica Biosystems BOND RX instrument. Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

    Counterstained with DAPI.

    Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 40 mins.

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can:

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com