Summary: This gene encodes indoleamine 2,3-dioxygenase (IDO) - a heme enzyme that catalyzes the first and rate-limiting step in tryptophan catabolism to N-formyl-kynurenine. This enzyme acts on multiple tryptophan substrates including D-tryptophan, L-tryptophan, 5-hydroxy-tryptophan, tryptamine, and serotonin. This enzyme is thought to play a role in a variety of pathophysiological processes such as antimicrobial and antitumor defense, neuropathology, immunoregulation, and antioxidant activity. Through its expression in dendritic cells, monocytes, and macrophages this enzyme modulates T-cell behavior by its peri-cellular catabolization of the essential amino acid tryptophan.[provided by RefSeq, Feb 2011].
These shRNA constructs were designed against multiple splice variants at this gene locus. To be certain that your variant of interest is targeted, align it with our published shRNA design sequences. If these do not align, please utilize our custom shRNA service.
OriGene guarantees that the sequences in the shRNA expression cassettes are verified to correspond to the target gene with 100% identity. One of the four constructs at minimum are guaranteed to produce 70% or more gene expression knock-down provided a minimum transfection efficiency of 80% is achieved. Western Blot data is recommended over qPCR to evaluate the silencing effect of the shRNA constructs 72 hrs post transfection. To properly assess knockdown, the gene expression level from the included scramble control vector must be used in comparison with the target-specific shRNA transfected samples.
For non-conforming shRNA, requests for replacement product must be made within ninety (90) days from the date of delivery of the shRNA kit. To arrange for a free replacement with newly designed constructs, please contact Technical Services at firstname.lastname@example.org. Please provide your data indicating the transfection efficiency and measurement of gene expression knockdown compared to the scrambled shRNA control (Western Blot data preferred).
* Delivery time in business days.Occasional delay may occur due to complexity of the constructs.
The use of this shRNA has been cited in the following citations:
INDOLEAMINE 2,3-DIOXYGENASE 1 (IDO1) IS UPREGULATED IN THYROID CARCINOMA AND DRIVES THE DEVELOPMENT OF AN IMMUNOSUPPRESSANT TUMOR MICROENVIRONMENT, Moretti, S;Menicali, E;Voce, P;Morelli, S;Cantarelli, S;Sponziello, M;Colella, R;Fallarino, F;Orabona, C;Alunno, A;de Biase, D;Bini, V;Mameli, MG;Filetti, S;Gerli, R;Macchiarulo, A;Melillo, RM;Tallini, G;Santoro, M;Puccetti, P;Avenia, N;Puxeddu, E;,
J. Clin. Endocrinol. Metab., Feb 2014.
* Delivery time is an estimate in business days. Occasional delays may occur due to unforeseen complexities in the preparation of your construct. International customers may expect an additional 1-2 weeks in shipping