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L-Kynurenine antibody – AP147

Polyclonal anti-conjugated L-Kynurenine antibody (rabbit)

SKU: AP147 Category:

From 180

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Additional information


Using L-Kynurenine-BSA conjugate (KYNU-BSA), antibody specificity was performed by using an ELISA test by competition experiments:

L-Kynurenine-BSA Kd around 10-8 M very high affinity and specificity

Very low affinity with close competitors:

Competitors Affinity compared to KYNU-BSA
D-Kynurenine-BSA 100 times lower low affinity
Xanthurenic acid-BSA 2 000 times lower low affinity
Quinaldic acid-BSA 3 000 times lower low affinity
L-Tryptophan-BSA 15 000 times lower no crossreactivity
Kynurenic acid-BSA 50 000 times lower no crossreactivity
3-Hydroxy-Kynurenine-BSA 50 000 times lower no crossreactivity
Quinolinic acid-BSA 50 000 times lower no crossreactivity
Picolinic acid-BSA 50 000 times lower no crossreactivity
Anthranilic acid-BSA 50 000 times lower no crossreactivity

The antibody recognizes the conjugated form of the small molecule, not the free form (see protocol for specific tissue preparation).

Additional Information

Host species





IDO compounds




Conjugated L-Kynurenine


Synthetic L-Kynurenine conjugated to bovine serum albumin (BSA)

Species reactivity

The antibody recognizes the target in all species, vertebrates (included humans) and invertebrates, because of the universality of the small molecule


Polyclonal antibody was preabsorbed on protein carriers and purified by ammonium sulfate precipitation



Stabilizers / preservatives


Storage instructions and buffer

Lyophilized vial must be stored at 4°C in a dry area up to 2 years after receipt. After reconstitution with 50% of distilled water and 50% of glycerol, the aliquot must be stored at -20°C, and is stable at least for 2 years. Avoid freeze-thaw cycles

Research areas

Neurobiology, Neurodegenerative diseases


ELISA, Immunohistochemistry, Immunocytochemistry. Optimal dilutions should be determined by each laboratory for each application. Suggested starting dilutions: 1/2000 – 1/10000 for ELISA, 1/1000 – 1/5000 for IHC

Corresponding antigen/related product

To validate the specificity of the response in your biological samples, Polyneuros sells as well the corresponding antigen: L-Kynurenine conjugate (Product number: AG147)

Related antibodies

Polyneuros also sells the monoclonal anti-L-Kynurenine antibody (AM009). Polyneuros sells as well polyclonal antibodies against other small molecules of the IDO pathway: anti-Kynurenic acid (AP062), anti-Quinolinic acid (AP063)