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AB277531

Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free

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Rabbit Recombinant Monoclonal Indoleamine 2, 3-dioxygenase antibody. Carrier free. Suitable for IP, WB and reacts with Mouse samples.

View Alternative Names

Ido, Indo, Ido1, IDO-1

5 Images
Immunoprecipitation - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free (AB277531)
  • IP

Supplier Data

Immunoprecipitation - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free (AB277531)

This data was developed using ab277522, the same antibody clone in a different buffer formulation.

Indoleamine 2,3-dioxygenase was immunoprecipitated from 0.35 mg Mouse colon tissue lysate with ab277522 at 1/30 dilution (2μg in 0.35mg lysates). Western blot was performed on the immunoprecipitate using ab277522 at 1/1000 dilution. VeriBlot for IP Detection Reagent (HRP)(ab131366) was used at 1/5000 dilution.

Lane 1 : Mouse colon tissue lysate 10μg

Lane 2 : ab277522 IP in mouse colon tissue lysate

Lane 3 : Rabbit monoclonal IgG (ab172730) instead of ab277522 in mouse colon tissue lysate

Blocking and dilution buffer and concentration : 5% NFDM/TBST.

Exposure time : 10 seconds.

All lanes:

Immunoprecipitation - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] (<a href='/en-us/products/primary-antibodies/indoleamine-2-3-dioxygenase-antibody-epr24032-22-ab277522'>ab277522</a>)

Predicted band size: 45 kDa

Observed band size: 46 kDa

false

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free (AB277531)
  • WB

Lab

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free (AB277531)

This data was developed using the same antibody clone in a different buffer formulation (ab277522).

Western blot : Anti-IDO1 antibody [EPR24032-22] (ab277522) staining at 1/1000 dilution, shown in green; Mouse anti-CANX [CANX/1543] (ab238078) loading control staining at 1/20000 dilution, shown in magenta. In Western blot, ab277522 was shown to bind specifically to IDO1. A band was observed at 35/42 kDa in treated wild-type A549 cell lysates with no signal observed at this size in IDO1 knockout cell line. To generate this image, wild-type and IDO1 knockout A549 cell lysates were analysed. First, samples were run on an SDS-PAGE gel then transferred onto a nitrocellulose membrane. Membranes were blocked in 3 % milk in TBS-0.1 % Tween® 20 (TBS-T) before incubation with primary antibodies overnight at 4 °C. Blots were washed four times in TBS-T, incubated with secondary antibodies for 1 h at room temperature, washed again four times then imaged. Secondary antibodies used were Goat anti-Rabbit IgG H&L 800CW and Goat anti-Mouse IgG H&L 680RD at 1/20000 dilution.

All lanes:

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] (<a href='/en-us/products/primary-antibodies/indoleamine-2-3-dioxygenase-antibody-epr24032-22-ab277522'>ab277522</a>) at 1/1000 dilution

Lane 1:

Wild-type A549 Treated IFN gamma (25 ng/mL, 48 h) ab281500 cell lysate at 20 µg

Lane 2:

Wild-type A549 Vehicle Control IFN gamma (0 ng/mL, 48 h) ab255554 cell lysate at 20 µg

Lane 3:

IDO1 knockout A549 Treated IFN gamma (25 ng/mL, 48 h) ab281489 cell lysate at 20 µg

Lane 4:

IDO1 knockout A549 Vehicle Control IFN gamma (0 ng/mL, 48 h) ab263515 cell lysate at 20 µg

Secondary

All lanes:

Goat anti-Rabbit IgG H&L 800CW and Goat anti-Mouse IgG H&L 680RD at 1/20000 dilution

Predicted band size: 45 kDa

Observed band size: 35 kDa,42 kDa

false

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free (AB277531)
  • WB

Lab

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free (AB277531)

This data was developed using ab277522, the same antibody clone in a different buffer formulation.

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

The expression pattern is consistent with what has been described in the literature (PMID : 30809284; PMID : 19741271).

Exposure time : 26 seconds.

All lanes:

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] (<a href='/en-us/products/primary-antibodies/indoleamine-2-3-dioxygenase-antibody-epr24032-22-ab277522'>ab277522</a>) at 1/1000 dilution

Lane 1:

C2C12 (mouse myoblasts myoblast), whole cell lysate at 20 µg

Lane 2:

C2C12 treated with 50ng/ml IFN-gamma (mouse) for 24 hours, whole cell lysate at 20 µg

Secondary

All lanes:

Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/50000 dilution

Predicted band size: 45 kDa

Observed band size: 46 kDa

false

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free (AB277531)
  • WB

Lab

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free (AB277531)

This data was developed using ab277522, the same antibody clone in a different buffer formulation.

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

The expression pattern is consistent with what has been described in the literature (PMID : 19741271).

Exposure time : 5.5 seconds.

All lanes:

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] (<a href='/en-us/products/primary-antibodies/indoleamine-2-3-dioxygenase-antibody-epr24032-22-ab277522'>ab277522</a>) at 1/1000 dilution

All lanes:

Mouse colon tissue lysate at 20 µg

Secondary

All lanes:

Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/50000 dilution

Predicted band size: 45 kDa

Observed band size: 46 kDa

false

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free (AB277531)
  • WB

Lab

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] - BSA and Azide free (AB277531)

This data was developed using ab277522, the same antibody clone in a different buffer formulation.

Exposure time : Lane 1-4 : 1 second; Lane 5-8 : 15 seconds; Lane 9-12 : 48 seconds.

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

In Western blot, Anti-Vinculin antibody [EPR8185] - Loading Control (ab129002) staining at 1/5000 dilution.

The tissue samples were kindly provided by GemPharmatech. C57BL/6JGpt wildtype mice and Ido1-KO homozygous mice (Strain ID : T011654).

All lanes:

Western blot - Anti-Indoleamine 2, 3-dioxygenase antibody [EPR24032-22] (<a href='/en-us/products/primary-antibodies/indoleamine-2-3-dioxygenase-antibody-epr24032-22-ab277522'>ab277522</a>) at 1/1000 dilution

Lane 1:

Wild-type mouse epididymis tissue lysate (male case1) at 20 µg

Lane 2:

Wild-type mouse epididymis tissue lysate (male case2) at 20 µg

Lane 3:

Ido1 knockout mouse epididymis tissue lysate (male case1) at 20 µg

Lane 4:

Ido1 knockout mouse epididymis tissue lysate (male case2) at 20 µg

Lane 5:

Wild-type mouse ileum tissue lysate (female case) at 20 µg

Lane 6:

Wild-type mouse ileum tissue lysate (male case) at 20 µg

Lane 7:

Ido1 knockout mouse ileum tissue lysate (male case1) at 20 µg

Lane 8:

Ido1 knockout mouse ileum tissue lysate (male case2) at 20 µg

Lane 9:

Wild-type mouse colon tissue lysate (female case) at 20 µg

Lane 10:

Wild-type mouse colon tissue lysate (male case) at 20 µg

Lane 11:

Ido1 knockout mouse colon tissue lysate (male case1) at 20 µg

Lane 12:

Ido1 knockout mouse colon tissue lysate (male case2) at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/20000 dilution

Observed band size: 45 kDa

false

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR24032-22

Isotype

IgG

Carrier free

Yes

Reacts with

Mouse

Applications

WB, IP

applications

Immunogen

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

Reactivity data

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Product details

ab277531 is the carrier-free version of ab277522.

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

What are the advantages of a recombinant monoclonal antibody?
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.

Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

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.

Compatibility
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
Constituents: PBS
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C

Supplementary information

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

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.

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 protocols

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

Target data

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).
See full target information Ido1

Product promise

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